i just bought a evga 660 ti yesterday upgradeing from a 9800 gtx on my new hp. well all i get is black screen fan works etc etc. it works on friends comp but not mine. wtf is going on evga and nvidia are at a los. i just wana rape crysis plz someone help i used the 6 prong everything is correct drivers the whole shot but still black screen what is going on some one help