System: Dell Optiplex GX260
About 7 out of 10 times I boot my computer it goes to a black screen after the progress bar gets to the end of the GUI and before it prompts for the username/password. My processor then proceeds to run as if it were in an infinite loop (I assume that is happening since the fan sounds like a turbo engine after a minute or 2 of running like this). I've tried "Last known Good Configuration" and debugging mode (which doesn't appear to do anything). I currently do not have the win2k disk with me to do a repair install (our sysadmin can't find it at the moment) so I was wondering if there was anything else I can try to get into it. It takes me sometimes up to 30 min to get into the system because of this. It started last week and I really don't know the cause of it. I have not installed any new software since/before it started happening.