My computer uses the 'Plug and Play" driver to display the monitor I have. I decided to try to install the driver that my monitor came with and it would not install.

So I decided the disable the 'Plug and Play' driver and try to load the driver for the monitor I just bought. It still would not.

I restart for some reason and it boots normally: I see BIOS and the black XP screen with the blue scrolling for windows loading. Once it gets to point where the login screen should load, I see nothing. But I am able to type in my password and login to windows (I can hear the sound XP makes when you login). But I can see nothing because there is no display driver enabled.

How can I restore the display driver without wiping out my HD?

Thanks in advance