Alright, so I succesfully installed Crossover for Mac. Then I sucessfully installed Steam on Crossover. But, whenever I open one of my games in my account, the screen goes black. I can still hear the Counter Strike menu clicking when I move my mouse, so it's probably a graphics issue. Here are some screenshots:
Steam!
Loading CS
BLACKNESS!!
When I try and quit Crossover

Steam!

Loading CS

BLACKNESS!!

When I try and quit Crossover