Ozzy, I've been doing more troubleshooting on my new PC since we "talked". I noticed you have the same video card as mine...shock shock (same original Ram, Motherboard, OS, and now Video Card...and both PCs crash....hmmm). It seems there are a lot of issues with this video card running way too hot. I upgraded my case to the Antec 900, but my issue didn't change. I figured that case would be all the cooling I needed. I found some suggestions to download Rivatuner and up the video card fan speed as with our card, it seems to be set low for the noise factor. I set the fan speed up to 50%. I also underclocked the card about 12% (painful to do since I love to overclock everything I can). I ran two monitors with 3 copies of Wow for about 7 hours this morning with absolutely no issues. I wont say it's fixed it until I give it a few more days, but I wanted to give you something to try since the weekend is coming up and it's hard to have fun when the PC keeps crashing. Good Luck!