I recently installed Windows Service Pack 2, actually three times after reinstating my computer software to the original state by erasing and reinstalling the full software install CD on my computer's hard drive for Window XP Home. I have no problems playing games with my new FX 5200 Ultra video card by BFG, but I am at random times getting the annoying green screen that blanks out my videos I am streaming or playing(happens when I am streaming more often). Then after that happens usually, the computer reboots or shuts off. I never had this happen before. My computer's memory tests ok so why can I play games with this never happening but when I am streaming or watching video through Windows Media Player, etc do I get the "green screen blankout" and then often the shutdown of my computer? I have 512 MB of system memory and 128 MB of video memory! I use System Mechanic and it shows I have at least half of my memory even during playback so what is the problem here? I can attach my system computer file of my information if you like in an e-mail if it will help. AND YES I HAVE THE DIVX CODECS. I thought about that to and uninstalled and reinstalled them with the same random problems. PLEASE HELP ME. This is really annoying.