I recently just upgraded my version of Windows XP Home SP2 to Windows XP Professional SP2 a couple of days ago. I copied all my files from the old build to the new build & installed all my new programs & drivers & yesterday everything was working fine. However, this morning I noticed my computer beeping at me every so often. I go into to check on it & apparently Windows has been trying to boot for the past 4-5 hours I guess. I watched it & Windows tried to boot in Normal mode, it will never get to the login screen (where you pick which user you want to login), & after 20-30 seconds of trying it will flash a blue screen for maybe half a second & then automatically restart again. I cannot start Windows XP Pro SP2 in Normal mode, but I can successfully start it in Safe mode without any problems. Like I said, everything was working fine last night after the upgrade. Any ideas on what is going on here?