A while ago i acquired a copy of windows Vista Ultimate (64 bit) and went to install it. Every time i went to do this, my computer would either shut down, or the display would just go black. The copy of Vista was from a mate and so it definitely worked, but for some reason it just wouldnt install. For the first time it happened, i presumed it was just part of the installation, but after waiting for 20 minutes and nothing happened, i restarted my PC. The second time my computer would get a little further in the installation before dying again. This happened four of five times before i gave up and reinstalled XP. A while later, i got my hands on a 32bit Vista Ultimate, and the same thing happened. I did manage to finish the installation though. But when i was setting everything up, it died yet again. Now i am looking at buying my own copy of Vista, but because of my past experiences, i wanted to make sure everything was ok, so i downloaded Microsoft's Windows Vista upgrade advisor. Once the scan completed, it told me almost everything was ok, other than a few incompatible programs (such as activesync and symantec anti virus)....Then i read on and it said my Video card wouldnt support Windows Vista. My system is: Mobo: p35-ds3r Video Card: 8800GTS 512mb Galaxy CPU: q6600 2.44ghz RAM: 2gb 800mhz DDR2 Corsair HDD: 1x 250gb 16mb Any help or advice would be great. I dont have another card i can put in to test it though. I have read on other forums that people have had problems with their 8800GTS and vista, but nothing to tell me how to fix it.