X Locks

My screen saver at work locks my X session about once a week ever since I bought a Radeon 7000 after my TNT2 died. It's very frustrating. Ctrl + Alt + Backspace can't exit; Ctrl + Alt + Delete does nothing. I have to hard reset my computer.

I could probably ssh in and fix it, but I use DHCP so I don't know my IP address (nor do I want to know it).

I've switched to the blank screen saver. Hopefully that will solve the problem.