So after many an hour spent building a world I absolutely love I decide to try adding mods. I try Gulliver's mod but she hasn't updated and I don't know how to downgrade. So I try Mo' creatures because let's face it that's the best mod. I need forge so I try downloading it and it's not working it says there's one error. Giving up I decide to start playing in my world than I decide to close out of my other things as it's running a little slow. Than out of the blue Minecraft crashes. I open it up and head into the world to get my supplies and I get three or four seconds and it crashes again. Six to twenty attempts later and I can't even hop over a block. Right now I'm in the nether and I keep getting crashed.

Along with crashing I receive this error message.
Spoiler
Show
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000006dac2897, pid=5364, tid=3720
#
# JRE version: 6.0_30-b12
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.5-b03 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# V [jvm.dll+0x2c2897]
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x0000000009818000): JavaThread "Minecraft main thread" daemon [_thread_in_vm, id=3720, stack(0x000000000cd80000,0x000000000ce80000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x0000000000000000

Registers:
RAX=0x0000000000000000, RBX=0x000000000ce7e6c0, RCX=0x00000000002ed520, RDX=0x00000000bbf73138
RSP=0x000000000ce7e520, RBP=0x000000000ce7e6f0, RSI=0x00000000bbf73138, RDI=0x0000000000000000
R8 =0x00000000020c0000, R9 =0x000000000000000e, R10=0x0000000000000001, R11=0x00000000be196870
R12=0x000000000ce7f2f0, R13=0x000000000ce7e5d0, R14=0x00000000e698c248, R15=0x000000000ce7f2f0
RIP=0x000000006dac2897, EFLAGS=0x0000000000010246

Top of Stack: (sp=0x000000000ce7e520)
0x000000000ce7e520: 00000000020dc884 0000000000000001
0x000000000ce7e530: 000000000ce7e690 0000000000000038
0x000000000ce7e540: 00000000020c4ed0 000000000590f910
0x000000000ce7e550: 0000000002426590 0000000000000000
0x000000000ce7e560: 000000000242d064 000000006dac2aab
0x000000000ce7e570: 000000000ce7e6c0 0000000000000000
0x000000000ce7e580: 00000000fc031690 000000000242cad0
0x000000000ce7e590: 00000000059b95d8 000000006d84afaf
0x000000000ce7e5a0: 00000000059b95d8 0000000000000000
0x000000000ce7e5b0: 00000000059b95d8 0000000000000038
0x000000000ce7e5c0: 000000010ce70101 0000000000000400
0x000000000ce7e5d0: 000000000ce7f240 000000000242d064
0x000000000ce7e5e0: 000000000242cad0 0000000000000000
0x000000000ce7e5f0: 00000000bbf73138 000000000ce7f280
0x000000000ce7e600: 00000000020c0160 00000000020c0184
0x000000000ce7e610: 000000000ce7eaf0 0000000000000000

Instructions: (pc=0x000000006dac2897)
0x000000006dac2877: e8 64 a7 df ff 48 85 c0 48 8b f8 74 13 48 3b c6
0x000000006dac2887: 77 0c 48 63 48 10 48 03 c8 48 3b f1 72 02 33 ff
0x000000006dac2897: 48 8b 07 48 8b cf ff 50 08 33 c9 84 c0 48 0f 45
0x000000006dac28a7: cf 48 8b 7c 24 68 48 85 c9 74 31 48 63 81 a0 00


Register to memory mapping:

RAX=0x0000000000000000 is an unknown value
RBX=0x000000000ce7e6c0 is pointing into the stack for thread: 0x0000000009818000
RCX=0x00000000002ed520 is an unknown value
RDX=
[error occurred during error reporting (printing register info), id 0xc0000005]

Stack: [0x000000000cd80000,0x000000000ce80000], sp=0x000000000ce7e520, free space=1017k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x2c2897]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
J java.lang.Throwable.fillInStackTrace()Ljava/lang/Throwable;
j java.lang.Throwable.<init>()V+10
j java.lang.Exception.<init>()V+1
j java.lang.RuntimeException.<init>()V+1
j java.lang.NullPointerException.<init>()V+1
v ~StubRoutines::call_stub
j aoc.a(DDD)Laob;+56
J lq.y()V

[error occurred during error reporting (printing Java stack), id 0xc0000005]


--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
0x0000000006289800 JavaThread "Server thread" daemon [_thread_in_native, id=4288, stack(0x0000000013df0000,0x0000000013ef0000)]
0x0000000006288800 JavaThread "Snooper Timer" daemon [_thread_blocked, id=3984, stack(0x0000000013cf0000,0x0000000013df0000)]
0x0000000006286800 JavaThread "Server thread" daemon [_thread_in_Java, id=4768, stack(0x00000000145f0000,0x00000000146f0000)]
0x0000000006286000 JavaThread "Snooper Timer" daemon [_thread_blocked, id=6044, stack(0x000000000c770000,0x000000000c870000)]
0x0000000006287000 JavaThread "File IO Thread" daemon [_thread_blocked, id=5032, stack(0x00000000135f0000,0x00000000136f0000)]
0x0000000006285000 JavaThread "Server thread" daemon [_thread_blocked, id=1292, stack(0x0000000006b40000,0x0000000006c40000)]
0x0000000006284800 JavaThread "Snooper Timer" daemon [_thread_blocked, id=5064, stack(0x0000000010750000,0x0000000010850000)]
0x0000000006283000 JavaThread "Thread-13" daemon [_thread_blocked, id=4900, stack(0x000000000f210000,0x000000000f310000)]
0x0000000006283800 JavaThread "Thread-12" daemon [_thread_blocked, id=2632, stack(0x000000000f310000,0x000000000f410000)]
=>0x0000000009818000 JavaThread "Minecraft main thread" daemon [_thread_in_vm, id=3720, stack(0x000000000cd80000,0x000000000ce80000)]
0x0000000009817800 JavaThread "Timer hack thread" daemon [_thread_blocked, id=6136, stack(0x000000000cc80000,0x000000000cd80000)]
0x0000000009921800 JavaThread "Snooper Timer" daemon [_thread_blocked, id=5008, stack(0x000000000cb80000,0x000000000cc80000)]
0x000000000a5dc000 JavaThread "TimerQueue" daemon [_thread_blocked, id=2964, stack(0x000000000c470000,0x000000000c570000)]
0x00000000094fb800 JavaThread "D3D Screen Updater" daemon [_thread_blocked, id=5700, stack(0x0000000008cc0000,0x0000000008dc0000)]
0x00000000003eb000 JavaThread "DestroyJavaVM" [_thread_blocked, id=5716, stack(0x0000000001fc0000,0x00000000020c0000)]
0x00000000059bb000 JavaThread "AWT-EventQueue-0" [_thread_blocked, id=6076, stack(0x00000000090b0000,0x00000000091b0000)]
0x0000000005a0e800 JavaThread "AWT-Windows" daemon [_thread_in_native, id=5220, stack(0x0000000006940000,0x0000000006a40000)]
0x0000000005a0d800 JavaThread "AWT-Shutdown" [_thread_blocked, id=5360, stack(0x0000000006840000,0x0000000006940000)]
0x0000000005a0c800 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=3376, stack(0x0000000006740000,0x0000000006840000)]
0x00000000003d1800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4068, stack(0x0000000005e10000,0x0000000005f10000)]
0x00000000003d0000 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=2408, stack(0x0000000005d10000,0x0000000005e10000)]
0x00000000003be800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=860, stack(0x0000000005c10000,0x0000000005d10000)]
0x00000000003bd000 JavaThread "Attach Listener" daemon [_thread_blocked, id=2768, stack(0x0000000005b10000,0x0000000005c10000)]
0x0000000005850800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=5876, stack(0x0000000005a10000,0x0000000005b10000)]
0x00000000003a8800 JavaThread "Finalizer" daemon [_thread_blocked, id=5924, stack(0x0000000005710000,0x0000000005810000)]
0x00000000003a1000 JavaThread "Reference Handler" daemon [_thread_blocked, id=5380, stack(0x0000000005610000,0x0000000005710000)]

Other Threads:
0x000000000039a000 VMThread [stack: 0x0000000005510000,0x0000000005610000] [id=6124]
0x00000000003d8800 WatcherThread [stack: 0x0000000005f10000,0x0000000006010000] [id=2324]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
def new generation total 314560K, used 67337K [0x00000000bae00000, 0x00000000d0350000, 0x00000000d0350000)
eden space 279616K, 24% used [0x00000000bae00000, 0x00000000befc2438, 0x00000000cbf10000)
from space 34944K, 0% used [0x00000000cbf10000, 0x00000000cbf10000, 0x00000000ce130000)
to space 34944K, 0% used [0x00000000ce130000, 0x00000000ce130000, 0x00000000d0350000)
tenured generation total 699072K, used 464637K [0x00000000d0350000, 0x00000000fae00000, 0x00000000fae00000)
the space 699072K, 66% used [0x00000000d0350000, 0x00000000ec90f470, 0x00000000ec90f600, 0x00000000fae00000)
compacting perm gen total 29696K, used 29538K [0x00000000fae00000, 0x00000000fcb00000, 0x0000000100000000)
the space 29696K, 99% used [0x00000000fae00000, 0x00000000fcad8b38, 0x00000000fcad8c00, 0x00000000fcb00000)
No shared spaces configured.

Code Cache [0x00000000020c0000, 0x0000000002580000, 0x00000000050c0000)
total_blobs=1883 nmethods=1170 adapters=664 free_code_cache=45499776 largest_free_block=21760

Dynamic libraries:
0x0000000000400000 - 0x000000000042f000 C:\Program Files\Java\jre6\bin\javaw.exe
0x0000000077630000 - 0x00000000777d9000 C:\Windows\SYSTEM32\ntdll.dll
0x0000000077510000 - 0x000000007762f000 C:\Windows\system32\kernel32.dll
0x000007fefcb60000 - 0x000007fefcbcc000 C:\Windows\system32\KERNELBASE.dll
0x000007fefd340000 - 0x000007fefd41b000 C:\Windows\system32\ADVAPI32.dll
0x000007fefd420000 - 0x000007fefd4bf000 C:\Windows\system32\msvcrt.dll
0x000007fefdc00000 - 0x000007fefdc1f000 C:\Windows\SYSTEM32\sechost.dll
0x000007fefd7c0000 - 0x000007fefd8ed000 C:\Windows\system32\RPCRT4.dll
0x0000000077410000 - 0x000000007750a000 C:\Windows\system32\USER32.dll
0x000007fefdeb0000 - 0x000007fefdf17000 C:\Windows\system32\GDI32.dll
0x000007fefd5a0000 - 0x000007fefd5ae000 C:\Windows\system32\LPK.dll
0x000007fefd8f0000 - 0x000007fefd9b9000 C:\Windows\system32\USP10.dll
0x000007fefd240000 - 0x000007fefd26e000 C:\Windows\system32\IMM32.DLL
0x000007fefd9c0000 - 0x000007fefdac9000 C:\Windows\system32\MSCTF.dll
0x000000006d800000 - 0x000000006dfb8000 C:\Program Files\Java\jre6\bin\server\jvm.dll
0x000007fefa7c0000 - 0x000007fefa7fb000 C:\Windows\system32\WINMM.dll
0x000000006d770000 - 0x000000006d77e000 C:\Program Files\Java\jre6\bin\verify.dll
0x000000006d3b0000 - 0x000000006d3d7000 C:\Program Files\Java\jre6\bin\java.dll
0x000000006d7c0000 - 0x000000006d7d2000 C:\Program Files\Java\jre6\bin\zip.dll
0x000000006d000000 - 0x000000006d1c4000 C:\Program Files\Java\jre6\bin\awt.dll
0x000007fef9460000 - 0x000007fef94d1000 C:\Windows\system32\WINSPOOL.DRV
0x000007fefd5b0000 - 0x000007fefd7b3000 C:\Windows\system32\ole32.dll
0x000007fefdfe0000 - 0x000007fefed68000 C:\Windows\system32\SHELL32.dll
0x000007fefd2c0000 - 0x000007fefd331000 C:\Windows\system32\SHLWAPI.dll
0x000007fefb580000 - 0x000007fefb774000 C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_fa39 6087175ac9ac\COMCTL32.dll
0x000007fefaf70000 - 0x000007fefaf88000 C:\Windows\system32\DWMAPI.DLL
0x000007fefb3a0000 - 0x000007fefb3f6000 C:\Windows\system32\uxtheme.dll
0x000007fefc8a0000 - 0x000007fefc8af000 C:\Windows\system32\CRYPTBASE.dll
0x0000000180000000 - 0x000000018004a000 C:\Program Files\Acer\Acer ePower Management\SysHook.dll
0x000007fefd4c0000 - 0x000007fefd597000 C:\Windows\system32\OLEAUT32.dll
0x000000006d2a0000 - 0x000000006d306000 C:\Program Files\Java\jre6\bin\fontmanager.dll
0x000007feeab00000 - 0x000007feeacff000 C:\Windows\system32\d3d9.dll
0x000007fefba70000 - 0x000007fefba7c000 C:\Windows\system32\VERSION.dll
0x000007fefa830000 - 0x000007fefa837000 C:\Windows\system32\d3d8thk.dll
0x0000000066c40000 - 0x0000000067028000 C:\Windows\system32\atiumd64.dll
0x0000000066330000 - 0x00000000665c9000 C:\Windows\system32\atiumd6a.dll
0x000000006d610000 - 0x000000006d627000 C:\Program Files\Java\jre6\bin\net.dll
0x000007fefd270000 - 0x000007fefd2bd000 C:\Windows\system32\WS2_32.dll
0x000007fefdc20000 - 0x000007fefdc28000 C:\Windows\system32\NSI.dll
0x000007fefc1e0000 - 0x000007fefc235000 C:\Windows\system32\mswsock.dll
0x000007fefc1d0000 - 0x000007fefc1d7000 C:\Windows\System32\wship6.dll
0x000000006d630000 - 0x000000006d63b000 C:\Program Files\Java\jre6\bin\nio.dll
0x000007fefbb90000 - 0x000007fefbb97000 C:\Windows\System32\wshtcpip.dll
0x000007fefc060000 - 0x000007fefc0bb000 C:\Windows\system32\DNSAPI.dll
0x000007fef7d90000 - 0x000007fef7dbf000 C:\Program Files\Common Files\Microsoft Shared\Windows Live\WLIDNSP.DLL
0x0000000077800000 - 0x0000000077807000 C:\Windows\system32\PSAPI.DLL
0x00000000719e0000 - 0x0000000071a06000 C:\Program Files\Bonjour\mdnsNSP.dll
0x000007fefa340000 - 0x000007fefa367000 C:\Windows\system32\Iphlpapi.DLL
0x000007fefa330000 - 0x000007fefa33b000 C:\Windows\system32\WINNSI.DLL
0x000007fef7820000 - 0x000007fef7828000 C:\Windows\system32\rasadhlp.dll
0x000007fef9fb0000 - 0x000007fefa003000 C:\Windows\System32\fwpuclnt.dll
0x000007fefc240000 - 0x000007fefc257000 C:\Windows\system32\CRYPTSP.dll
0x000007fefbf40000 - 0x000007fefbf87000 C:\Windows\system32\rsaenh.dll
0x000007fefbca0000 - 0x000007fefbcbe000 C:\Windows\system32\USERENV.dll
0x000007fefc9b0000 - 0x000007fefc9bf000 C:\Windows\system32\profapi.dll
0x000007fefa690000 - 0x000007fefa6a5000 C:\Windows\system32\NLAapi.dll
0x000007fef4200000 - 0x000007fef4215000 C:\Windows\system32\napinsp.dll
0x000007fef41e0000 - 0x000007fef41f9000 C:\Windows\system32\pnrpnsp.dll
0x000007fef41d0000 - 0x000007fef41db000 C:\Windows\System32\winrnr.dll
0x0000000006a40000 - 0x0000000006a88000 C:\Users\Christian\AppData\Roaming\.minecraft\bin\ natives\lwjgl64.dll
0x000007feea9e0000 - 0x000007feeaafd000 C:\Windows\system32\OPENGL32.dll
0x000007fefa460000 - 0x000007fefa48d000 C:\Windows\system32\GLU32.dll
0x000007feebf50000 - 0x000007feec041000 C:\Windows\system32\DDRAW.dll
0x000007fefa500000 - 0x000007fefa508000 C:\Windows\system32\DCIMAN32.dll
0x000007fefd060000 - 0x000007fefd237000 C:\Windows\system32\SETUPAPI.dll
0x000007fefca60000 - 0x000007fefca96000 C:\Windows\system32\CFGMGR32.dll
0x000007fefcb40000 - 0x000007fefcb5a000 C:\Windows\system32\DEVOBJ.dll
0x000000006d3f0000 - 0x000000006d3f7000 C:\Program Files\Java\jre6\bin\jawt.dll
0x0000000069030000 - 0x0000000069ed6000 C:\Windows\system32\atio6axx.dll
0x0000000006af0000 - 0x0000000006b32000 C:\Windows\system32\atiadlxx.dll
0x000007fefcbd0000 - 0x000007fefcc09000 C:\Windows\system32\WINTRUST.dll
0x000007fefcc10000 - 0x000007fefcd7a000 C:\Windows\system32\CRYPT32.dll
0x000007fefca50000 - 0x000007fefca5f000 C:\Windows\system32\MSASN1.dll
0x000007feea8b0000 - 0x000007feea9d2000 C:\Users\Christian\AppData\Roaming\.minecraft\bin\ natives\OpenAL64.dll
0x000007fef6420000 - 0x000007fef64a8000 C:\Windows\system32\dsound.dll
0x000007fefbb40000 - 0x000007fefbb6c000 C:\Windows\system32\POWRPROF.dll
0x000007fefdc90000 - 0x000007fefdd29000 C:\Windows\system32\CLBCatQ.DLL
0x000007fefaf90000 - 0x000007fefafdb000 C:\Windows\System32\MMDevApi.dll
0x000007fefb400000 - 0x000007fefb52c000 C:\Windows\System32\PROPSYS.dll
0x000007fefa780000 - 0x000007fefa7bb000 C:\Windows\system32\wdmaud.drv
0x0000000075290000 - 0x0000000075296000 C:\Windows\system32\ksuser.dll
0x000007fefa850000 - 0x000007fefa859000 C:\Windows\system32\AVRT.dll
0x000007fefa640000 - 0x000007fefa68f000 C:\Windows\system32\AUDIOSES.DLL
0x000007fefa5c0000 - 0x000007fefa5ca000 C:\Windows\system32\msacm32.drv
0x000007fefa5a0000 - 0x000007fefa5b8000 C:\Windows\system32\MSACM32.dll
0x000007fefa590000 - 0x000007fefa599000 C:\Windows\system32\midimap.dll
0x000000006d550000 - 0x000000006d55a000 C:\Program Files\Java\jre6\bin\management.dll

VM Arguments:
jvm_args: -Xms512m -Xmx1024m
java_command: C:\Users\Christian\Desktop\Minecraft.exe
Launcher Type: SUN_STANDARD

Environment Variables:
PATH=C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\Sys tem32\Wbem;C:\Windows\System32\WindowsPowerShell\v 1.0\;C:\Program Files (x86)\EgisTec\MyWinLocker 3\x86;C:\Program Files (x86)\EgisTec\MyWinLocker 3\x64;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\Windows Live\Shared;C:\Users\Christian\AppData\Local\Smart bar\Application\;C:\Users\Christian\AppData\Local\ Smartbar\Application\;C:\Program Files\Java\jre6\bin
USERNAME=Christian
OS=Windows_NT
PROCESSOR_IDENTIFIER=AMD64 Family 15 Model 124 Stepping 2, AuthenticAMD



--------------- S Y S T E M ---------------

OS: Windows 7 , 64 bit Build 7601 Service Pack 1

CPU:total 1 (1 cores per cpu, 1 threads per core) family 15 model 124 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, mmxext, 3dnow, 3dnowext

Memory: 4k page, physical 2879540k(1127152k free), swap 5757228k(2822164k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (20.5-b03) for windows-amd64 JRE (1.6.0_30-b12), built on Nov 10 2011 01:49:46 by "java_re" with MS VC++ 8.0 (VS2005)

time: Fri Nov 23 19:31:47 2012
elapsed time: 163 seconds



Any help would be appreciated.