I uninstalled Sophos and installled PC-Cillin. I had no viruses or spyware per PC-Cillin or Sophos.

I am still getting 30-50 FPS, which actually looks fine, though I am still crashing. I noticed Albatross' post regarding Realtek sound drivers. The driver for my mobo is Realtek, and comes from 2005, though there is no newer version available that I know of (I checked on ASUS). I am going to try disabling on board sound in my BIOS to see if that will fix the problem, in which case I can just buy a sound card.