I know I had this problem awhile back when I last did a clean install of Windows XP. Everything installs fine and once loaded to the desktop my screen begins to go black for a few seconds or less and then the desktop reappears. Nothing is changed and the pc isn't frozen, it just constantly goes black and then re-appears. Happens every few seconds. This is before I install the monitor or video drivers. Once they are installed it is the EXACT same issue. Nothing changes. There is nothing wrong with the hardware. I use Vista on the same machine 100% flawlessly. I know there is a fix for this issue and I had to do it awhile back but I can not remember what it was for the like of me. Can anyone help? The Video Card is a Geforece FX 5900. Thanks in advance!