ok, i have never seen this happen to me before. I was just playing ETW then my music all of a sudden starts to repeat. Or more exactly, it just can't continue and it keeps playing the same note over and over again. My screen suddenly turns black and i can't use my keyboard. Now i don't think it is specifically a ETW problem. Is it possible that either my cpu/gpu or hell even the mobo is somewhat broken?

using:
Nvidia Geforce 8800GTS 320MB
AMD Athlon 64 X2 Dual Core Processor 5600+ @ 2.81GHz