So far what I'm seeing are reports of hardware errors. What are your system specs? Ie, what cpu, motherboard, ram, psu, graphics card etc.
First place I would start is running a couple of stress tests.
Memtest86 here: http://www.memtest86.com/
and Prime95 (for the cpu) here:
http://download.cnet.com/Prime95-64-bit/3000-2053_4-75869492.html
Also the furmark stress test for video cards: http://www.ozone3d.net/benchmarks/fur/
Running these will push the components and should reveal any glitches/issues in them if there are any. If not, they should pass just fine. The tests typically run anywhere from 30min to a couple of hours. If you're using any type of overclock, try disabling it and setting back to stock if you're not running stock already on both cpu and gpu.