[Wine] Wine and Return to Castle Wolfenstein problem

[Snydley]

This is my 1st attempt a running a Windows program in Linux,(Ultimate 
Edition 2.8 64bit), and it runs great but there's a small problem. When 
I quit the game and go back to the desktop and start any program up it 
only fills the top left hand part of the screen. The approx. 3/4 of the 
screen that's left is showing my desktop. I have some kind of ATI PCI 
Express card,(not sure what it is).
Does anyone know how I can fix this?
Thanks,
Snyde