Yesterday I was surfing on the internett when all of a sudden my mouse and keyboard malfunctioned. A small error message appeard from my system tray saying "USB Device Not Recognized". I don't know what could have caused this, but as I unplugged and plugged the mouse and keyboard back in they both worked again. When I use the computer for several minutes the same thing happenes again. Sometimes as I see the light go out from underneath my mouse I pick it up and it magically starts to work again, but there are still times when it doesn't start to work again just by waiting, and that's when I have to reinsert my USB devices to make them work again. Anybody who might know what's causing this?