I just found I accidentally had HPET set to 32 bit mode when it should be on 64 in my system bios. What exactly does the high precision event timer do? I've read it is a fairly new thing and should be enabled if you are running Vista but I haven't really found much else on it other than it possible effecting multimedia applications. Here is a link with more info but wasn't really much help to me. http://en.wikipedia.org/wiki/High_Precision_Event_Timer Would having it in the wrong mode change the performance of my pc at all? I have corrected it now. I saw the setting in there when I first built my pc but forgot to adjust it after switching to Vista 64 permanently a couple months ago.