I had a similar problem like that. I went off, played Diablo II and then after exiting, the icons were all screwed up. I tried rebooting the system, but the icons remained the same. Then I said screw it and started Diablo II again. exited it and everything went back to normal. THat's when I realized that the game itself screwed shit up...probably DirectX in some way. Hope this gives you some insight...possibly a program you were running when the problem popped up?