Ok here is the situation, I belive the source of the problem is a Diablo 2 game I downloaded and installed, I go through the instillation no problem, I finish the install, says it's going to run a video test, screen goes black, wait about 3 minutes then restart my PC.
I get to the log in screen, select your username (Running XP btw) I enter my password and log in and get the error message: "This copy of windows must be activated with microsoft before you can log on, Do you wish to activate windows now?" This is a legitimate version of windows I have been using for the past 12 months. I click no, it kicks me to my log in screen, I click yes it kicks me back to my log in screen.
*Sigh* I know there is not much that can probibly be done, I just would like to try something before I format my PC (Was going to do a full format a while ago, guess this is a good exscuse, but I got about a weeks worth of work I don't want to lose)