I'd like some thoughts and recommendations for those of you in the know. I'm am FAR out of my field of expertise here. If any of my symptoms sound familiar and you can help lead to a solution, I'd be much appreciative. These problems came about after I installed Kazzaa file sharing software. My system has flaked out and I believe I have 1 of 3 possible problems. 1. I have a sophisticated trojan/backdoor installed. 2. I have a sophisticated Virus 3. My Video Card is on the fritz. Basic System specs: (High end modern system). 1. Windows XP Pro 2. GeForce 3 Vid Card 3. 512MB DDR Ram 4. LAN, Zone Alarm (Standard), Windows Firewall Off, standard drives... Solutions taken: 1. Full Virus Scan with Nortion Antivirus with latest Definitions. (Reported Clean) 2. Full Trojan Scan with TDS-3 Trail version (Reported Clean). 3. Net search for "pink screen" with no usable results. 4. Uninstalled Kazzaa and erraticated all reference to it from the registry. Now system slowdowns went away. 5. Ran Ad Aware with latest dataset. (Reported Clean). 6. Next step is using Recovery Console in an attempt to repair, reinstalling video drivers and then a reinstall of Windows XP Pro. I want to avoid a reinstall if possible. Symptoms: 1. Periodic screen flash as lines across the top of the screen. This happens very quickly and does not interfere with work. Hard to tell if the flashing of these lines are pink or white. 2. Screen flashes all transparent pink. Sometimes stays this way for a min or two then goes away. It is as if the green settings on my video card has been turned off. Looks like someone put pink plastic wrap over my screen. I can still work. 3. A few oddball problems like ALL my system restore points have failed, my windows XP CD "suddenly" and timely could no longer be read. 4. Screen Savers no longer work. They run like molasses, take forever to start and turn off. 5. A few cases of fatal system error crashes (Blue Screen of Death). 6. Some serious system 'busy cursor", slow downs and a few instances of "can not delete file because it is in use by another application" errors. * Symptoms in 6, above, went away after uninstalling Kazzaa. Any help would be greatly appreciated. If you feel prompted to send an email, please send it to Shrowd@bigfoot.com. Thank you.