another fixed
i too had fallen victim to artifacts and red lines on one of my 8800 gts, so i figured i wouldnt have anything to lose and try the oven trick "kinda". being i only have 1 oven, which i cook carbon based food in not silicon, i wasn't about to have electrolyte lunch.. so i used my handy dandy heat gun i had bought for stripping paint and a infrared thermometer. first removed sink and old themal paste and used a small brush and some electronics cleaner on all components and to jus clean up the pcb and let the fumes roll off till dry. kept the gun at a good distance from the card not keeping the heat in one place too long then taking heat off and checking temp, got upto 350 in about 4-5 mins then i slowly raised to 375 concentrating mostly on the gpu side of board for about 4-5 mins. let cool new paste and wallah! been folding when not at computer for 3 weeks and still games as well as other 8800..
my 2 cents on the whole issue. these companys really shouldn't skimp on the quality of the solder. why soo many people are having these issues is beyond me.... but i spose i should be happy its alive again ! soo thanks too all for the input on the matter!