Fatal Error

keblob

So I finally got this game to work on my new computer. Logged in for the first time in a year, saw my character was fine and decided it was time to get back into UWO. The next day I go to log in. The moment Gameguard finishes its checks and the game window tries to open I get the message - 

"A fatal error has occurred. Failed to run.

Restart windows and try again."

That's in full-screen mode. In any windowed mode the game window opens and closes immediately.

I restarted windows, uninstalled my antivirus software, created exceptions in my firewall, uninstalled and reinstalled the game... I've tried everything I can think of. What is the problem? And how can I fix it?