i have the same problem, I can do anything I want with the mouse, include surf the net, until I press any key on the keyboard..Whether it's in a word doc, or trying to enter a password on the net. As soon as I hit a key, the whole computer locks up tight. Even cntrl alt delete does nothing. I have to hard boot it, then it's the same again. I can play games or do anything until I hit a key. The key board and mouse are in the right ports, it's a dell 450 mghz processor, running win 98 se.It worked fine for 2 years, I stored it in a closet for about 6 months, then when I hooked it up again, I used the keyboard to set up the network, then updated my windows, then it happened. Any help would be great. I can get into the bios by using a boot cd, then f2, but I can't do anything that makes a difference.