I'm having some serious CPU usage problems (so much so that I'm going to be doing a clean install again tommorow) - and unfortunetly this solution doesn't seem to relevant, especially since I slipstreamed SP1 and then installed the drivers. I'm getting all those symptoms, keyboard lag, stuttering in games.. CPU cycles going tropo (forget 56%, try 100%!), computer just plain screeching to a halt.. *sigh*