First of all, I have my mouse set to left-handed. For the last week, a couple of times a day my mouse buttons randomly switch back to the standard righty settings. But, when I check the mouse settings in the control panel, it still says the buttons are switched. Unplugging the mouse and plugging it back in solves the problem, but it's annoying, especially when it happens in the middle of a game. Does anybody have any idea what's going on?
(On a similar topic, sometimes my arrow keys produce numbers, as if the keyboard isn't sure which arrow keys are on the number pad and which are the regular ones. This happened with my old keyboard too.)
(I run Windows 7 Home Premium. It's some kind of Microsoft mouse, but there's no markings on it to indicate what sort. Oh, the mouse options window says it's a "Comfort Mouse 4500".)