seagate barracuda SATA 7200.12 500gb HD
corsair 1000w atx 12.v 2.2 power supply
G.Skill 6GB (3x2gb) 240-pin ddr3 ram
intel core i7-920 bloomfield 2.66GHz
gigabyte ga-ex58-ud3r MoBo
coolermaster v8 heatsink
EVGA 260gtx superclocked edition 896MB
Win 7 Ultimate
Ive had the above computer for 2 weeks and it just started doing the exact same thing. I am a little confused since I replaced everything and its a completely different computer. Now I know its not hardware related. Any ideas on what external issues could be causing this problem?