I have ordered a Desktop with the specifications listed below . I Kinda had zotac geforce 650ti installed in a windows 7 ultimate OS and then due to circumstances i had to remove it and buy 660ti now when i asked the engineer to install windows 8 . he installed a professional version and apparently noone of the drivers seem to be detected . now my gear is not a pushover so as to not handle windows 8 . can someone tell me where things are going wrong . frankly im baffled im not a ultra geek but i do understand stuffs and i have no clue as to why he said noone of the drivers are detected. He asked me to try windows 8 cracked version and let him know what the issue was. im yet to receive the system but i would like some insights from you guyz.