I did have mine set to use about 95% processor, as well as accepting larger projects, and I run the graphical client instead of console, so that's probably why. Just switched to smaller projects on the main system, and going to drop the processor to what you just mentioned, see what happens. I have no real problems most of the time, it just when I start my MMO's *shrug*. Personally I'm not to worried about it. Only curious thing I notice, I run the larger projects faster than I do the small one, maybe that's just because I also dropped the priority. Getting ready to trade to the console client as well, see what happens there.