I have 2 demos. Medal of Honor: Allied Assault. And Tom Clancy's: Ghost recon. First I downloaded Tom Clancy's and when i played it, everything was fine.... thne my computer started freezing up, so i deleted it. Now I got Medal of Honor. I played it for a couple of days...no problem. Now whenever I play, it freezes my computer, then when I press "reset" my computer doesn't reboot! It just sits there. I have to press reset 100 times at least... even unplugging the power from my comp doesn't help. My Epox 8K7A mobo says: C1. (what does that mean?) when everything runs normally it says FF. Also, after I reboot, it says ER4()*&(&)&* for my IDE drive... I have an IBM 60GXP 40gig drive. I did virus scans, file scans, surface scans. Everything seems to be clean. Not counting BIOS, I have all the latest drivers...What seems to be the problem?