A friend of mine is using Windows 98, and he's just started noticing that his CPU usage is pretty high even when he isn't doing anything on the computer (like about 50% or so most of the time). He's tried closing all his running programs through CTRL-ALT-DEL, but his CPU usage doesn't go down. Any ideas what could be causing this? He has a virus scanner (my first thought was a virus of some kind) that's up to date that doesn't find anything. Also, I installed SETI@Home on his computer and it uses almost all of the CPU while the computer is idle, so whatever is taking up his CPU has to have a lower priority than SETI even. Any ideas? Thanks.