I would be extremely grateful for your help and thank you in advance for any of it given.

Since the problem is specific I posted a pretty detailed description of how it all came to be but at the very end of it I also included a shortened explanation for those who's time is precious.

After being persuaded by a friend to install a theoretically great program (which goes by the name of Alcohol 120%) I downloaded it and ran the setup during which some kind of error or another popped up, restarted my computer and left me with a problem.

It seems that during the corrupted file's installation it chucked out/deleted/eradicated drivers for PLUG AND PLAY BIOS EXTENSION (when I open my device manager by the icon of the extension I have a yellow exclamation icon).

Seemingly nothing else of greater significance happened until I turned on some games (Prince of Persia: The Sands of Time if anybody is interested). It appears that my computer's video performence fell quite a bit (graphics are choppy, straight lines became visably edgy). This should not be the case since I have an AMD Athlon XP 2500+ Barton, Radeon Sapphire 9600 pro Atlantis, Asus A7V8X-X.

I do not know if the PnP and poor video performance are somehow connected but I noticed the fall of performance right after the problematic setup of the corrupted program.

Since I'm no Wiz I tried looking around for simple Plug and Play BIOS drivers to install and have the problem over with but I have not found any (if that is what I am supposed to do) and have turned to you for help.

Thanks again in advance, Wit

Shortened version:

1. Installation of corrupted setup program (Alcohol 120%)
2. Forced restart during setup (Alcohol 120% therefore did not fully install itself and what did I uninstalled)
3. Deletion of Plug and Play BIOS drivers and fall of video performance