I have been having some issues with my computer lately, I built it myself this past December. It has run great until now, where it has been randomly locking up, where i would have to manually shut it off. It would lock up displaying whatever was on the screen. I have reformatted, updated all my drivers, cleared my cmos, flashed my bios, tested my ram, and soundcard. Im running out of ideas. Currently i have a AMD 3500+ 939, MSI Neo2 platinum mobo with the nForce 3 chipset, 1gig of 3200 corsair, 480 Watt Antec PSU, eVGA 6800 GT, AUdigy 2 ZS soundcard. I have also tested for overheating, and this is not the issue. ANy advice would be appreatiated