hmm, then some real A** H*** made your PC, (sorry about bad slang)
tell them to effectively put thermal material between your CPU and Heatsinks.
actually it happend, that you might not have put load on ur PC before, as when u comperssed/copy music, CPU works at 100%load, and it eventually burnt your CPU die.
tell them to replace, and next time do not forget to use a good thermal material.
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"