The base fonts on my Windows XP Pro were corrupted. A suggested fix was to "install" XP again, essentially just to overwrite the WINNT folder hence resetting all the fonts. I downloaded the XP Pro SP3 installer from our corporate MSDN account, ran it straight from the HDD and at the very end it crashed and rebooted. Now it just keeps rebooting over and over after saying "Continuing installation...." I can't boot in Safe Mode, I can't get to a command prompt or anything. I'm out of ideas. Formatting the drive and performing a fresh install is NOT an option.