Startup screen to boot screen, then re-boot, etc. No idea as to why this is happening, but I'm going to try booting in safe mode and see what happens. The only thing I did differently is that I hooked up a DSL service to it about a week ago. Yes, it's firewalled and locked up with Norton Antivirus, so it should be OK woth regards to an intrusion. The thing just continually loops and won't let me get as far as the Win XP login screen. Any ideas as to what could have happened? Flaky MB? Conflict? I am not getting beeps from the system at startup, so I don't think it's a component conflict.