My windows xp home will not boot in regular or safe mode, or any system restore modes, it gets to windows loading bar then gives me a blue "video drivers failed to initialize" error after which i reset. This happened after i tried to install updated drivers for my nforce 6800 mobo (may have been the wrong drivers). I installed another version of windows and copied over the working drivers from the system32/drivers directory, but this did not fix the problem. I read that this problem can be related to a corrupted beep.dll file, but that file was replaced when i copied over the drivers and still same starting error. When i attempted to run in vga mode i got an error that system32\drivers\nvatabus.dll was missing, upon running repair and the above mentioned driver copy this error stopped occuring and i just go ther regular failed to initialize error. any suggestions on reseting to default video drivers long enough to install the proper ones through the install program on the right os? There seem to be some underlieng overheating issues in this system also but they may or may not be related, though they do seem to account for the random freezes that occur when performing high end or fat32 functions. ive run memtests and they came back clean (except that one of my sticks is named v7v7v7v7v7v7, or something like that), and ive reset bios to failsafes. the option of installing windows over the old windows remains, but i would rather not lose all my profile information and info that is access restricted to that profile, as well as go through installing all of my programs again. any help is appreciate, thanks.