Hi (-: My computer makes one beep, and then freeze while showing the manufactor screen at boot up. Before it started acting like this, my Windows Vista partition (i dual boot Kubuntu linux and Vista) was really slow. On the 2, maybe 3 last startups of Vista before the freezing started it took forever to start and login. And, the last time i succesfully booted the computer, Windows update started and asked me to do a restart, did so and since i have not been able to get past the manufactor screen )-: i have not done a virus search in a long while, so maybe it is a virus? The linux partition functioned perfectly to the very last. The last time i logged into windows, the bios screen was, for a brief time , messed up graphicaly, and the screen went purple for a second when loading vista. Maybe a problem with my graphics card? I have done some ecstensive overclocking of my cpu, and some smaller on the gpu. Specs: Asus P5N-E SLI motherboard, intel 2 core duo 1.8 ghz procesor OC to 3.1 ghz with bios. nvidia gts 450 zotac graphics card wich i overclocked with nvidia software the last time i booted succesfully. 3 gb of ram. Can anyone help?