Hello again everybody - I have been having a time of it lately trying to figure out just what exactly has gone wrong with my system. Firstly the specs: Mobo - Asus A7V8X-X CPU - AMD Athlon XP 2000+ RAM - Kingston DDR400 1024Mb Vid - Gigabyte Radeon 9200 HD - 1 x WD 200Gb, 1 x Maxtor 80Gb (mp3 only) Sony DVD-Writer After a spate of crashes, initially during a screensaver then becoming more regular 'freezes' during anything from wordprocessing, idle downloading overnight, using itunes, playing videos etc. my system has become remarkably slow. I fear that having to power down without shutting down windows properly may have caused some kind of damage to the OS. After a defrag of all drives, chkdsk, virus / trojan scans, registry cleanup, my startup time either cold or hot has climbed into the 3 minute mark and once the system is up and running everything seems to be on a bit of a lag, kasperky antivirus seems to be a culprit in slowing things down (as per usual), but has become much more pronounced after the 'freezes', a virus-scan taking 3-4 times longer than usual. When I click on 'My Computer' now the little flashlight comes up for a few seconds. I have cleaned all internal fans, reseated RAM and replaced cables, all to no avail. I presumed this was a video card problem but can run relatively GPU intense apps (Unreal Tournament 2003 for eg) with no real lag once started. Any advice or help would be greatly appreciated.