Hi guys, am having a zotac gtx 295 and everything was working fine until about a week ago that i upgraded my os from windows 8 to windows 8.1. then the problem began. After my computer has been on for some time the screen freezes but everything else still keeps running for example the music that will be playing will still continue to play. the only option for me is hard reset the pc. I went back to my previous os and still the problem persists. One thing that i have notice is that the system freezes quickly when i connect my dvi connector to the one nearer the motherboard than the one far from the motherboard. I have now tried disabling sli and the system and have been on for almost an hour now. I really need a help on this please.