Fullscreen Window mode?

I tried to activate the windowed fullscreen mode and now my game launches to a black screen. I can't see anything but the audio is clear and I'm not sure how to restore settings to default or fix the black screen. Any solutions besides deleting and re-downloading the game?

http://forum.warmane.com/showthread.php?t=403829

So is there no supported windowed fullscreen or maximized fullscreen mode?

WoW/WTF/Config
Either add the following lines to your config, or change them to following values:

SET gxWindow "1"
SET gxMaximize "1"

Thanks! Your suggestion works perfectly.