I was running hot(see Athlon 900 and Asus A7V133 post) and also noticed my CPU usage always indicated my CPU was at about 40% usage. It does fluctuate but remains high when it should not be and if I just move my mouse around it drops down to near 0. I have determined this by using 3 different CPU usage monitors and they all show the same results. It's as if there's a program running that gets out of the way when something else requests the processor but I have nothing , to the best of my knowledge, which could be doing that. Does anybody have any suggestions at all ? I can't help but think that this is also contributing to it running so hot. P.S. - I've also just discovered that when in Safe Mode under Device Mgr.>Properties I'm being notified that my floppy and 'C'drive are using MS-DOS compatibility mode yet in normal mode the Properties box gives no indication of this. Could these things have anything to with each other ?