Reboot gets to login but no users, password box, buttons, logo, etc. Help?

[thephatp]

I would take a screenshot, but there's not much to show. It's the gray (textured) Mac login screen, but nothing appears on the screen. No apple logo, no buttons at the bottom, no users, no password box, no clock or airport. Nothing. I've let it sit here for about 15 minutes, but nothing.

 

This happens after apply the battery fix (from here: http://www.osx86.net...do=file&id=2284, note that this is not the same as the one from http://www.insanelym...howtopic=259702, which didn't work for me).

 

The battery fix from osx86 actually worked, but when I rebooted, I get the problem above.

 

What could cause this to happen?

Am I missing any kexts that could cause this?

 

I'm running Lion 10.7.3 on a Dell Studio 1558.