last week i took my computer out so i can clean it away from dust, and after i was done i hooked every thing back on the computer. Everything was working propery except for the mouse! The mouse is a regular ball sony mouse that came with the computer. I tried everything to fix it, and nothing happened, so i quit and watched tv and suddenly after about 10 min it just came back! is this a problem? or does that happen to any other computers, i have a stock sony 2.8 ghz, 512 ddr. If this is a problem please reply back so i can get some help. Thank you.