Really weird problem.

I have an Nvidia GeForce FX something. I have all the proper drivers, and it was working wonderfully for awhile. In fact, it was running great right before the computer was moved upstairs.

The problem? It'll start up, show the BIOS screen on the monitor, go through the "Windows XP" load bar. However, right before it hits the "Welcome" screen where you click your name and type in the password, information to the monitor ceases. Anything I can do? Any help would be muchly appreciated. : )

 

Thank you for the response/information. However, it is indeed firmly in place and screwed in snugly. Bloody 'ell. Thanks again : )