Sorry guys if this has been posted before. I currently have a Nvidia Geforce 6600GT and want to upgrade to a newer card to play BFBC2 and Cysis, ect. I have been given a Nvidia Geforce 9800GT and installed it in my computer. I have the latest drivers and have reinstalled the drivers many times and rolled them back many times, I'am useing the 6 pin PCI-e power cable from my psu but am having BSOD's and the screen goes funny colours and the computer freezes. So I have to restart it. I happens all the time.