Ok, I am assuming that you havent done anything drastic yet and that you are getting booted into regular mode and that your video is still screwed up. If you are reading this you are booted and have access to the internet. Right click on your wallpaper and choose properties, then click on the tab that says settings, you should then be able to see what kind of video adapter you have. Once you know the manufacturer and model find their website and go into support, get the latest driver for your adapter and operating system. After that go into start\settings\control panel and double click on the system icon. Ok, this is where it gets kinda fuzzy for me cuz I went from win95 to NT 4 workstation at home and am now on 2000 pro but here goes, in system properties you should see a device manager tab towards the top, click once on that. You should see an icon that says display adapters, click on the +, you should then see your video adapter. Now before you do anything else make sure that the driver you downloaded is uncompresed ( usually winzip ). After that is done left click once on the display adapter and choose remove, after it is gone restart. When your machine restarts it will find new hardware (your video adapter) and ask for the driver, point it to the folder that the uncompressed driver is in, it will load the driver and (maybe) prompt for restart, do it. You may have to adjust the settings after it boots. If you are still having problems I will email you my phone number and we can try something else. I do geek stuff for a living and may be able to help.
Shoot, to gung ho to help and didnt notice the dates, prolly done reinstalled everything by now, oh well, the offer to help is still open.