Ok this happened about 4 or something months after I got ff11. My mouse pointer in ff11 sometimes disappears and I can't use the mouse at all (It gets stuck and then later after awhile pointer disappears). It seems the laser on my mouse glows and it doesn't sense movement.
It gets very annoying and only solution is to unplug and replug the mouse but it happens most of the time and it's a usb plug with a PS/2 thing that you can plug the usb into and then into that port. Anyone know any way of solving this? I am really used to using the mouse in ff11.