I figured it would be slow at 512mb of RAM, but for testing I didn't think it would be an issue.
The next option for the Frame Buffer is 8mb, so I set it to that and started in Video Safe Mode again.
I get the same text login box where my admin credentials don't work.
If you really think this is a video issue I'll dig up another video card and monitor to isolate that part of the situation. Will I need to reinstall the product? Or should Video Safe Mode work regardless?