EAW Crashing on open
 

I've just installed Empire at War and patched it. I tried to open it , gets past the first few logo screens, has "Loading" in the bottom left, then all of a sudden just dies and takes me back to the desktop.

My drivers are up to date, Directx version 9.0c and the nvidia drivers for my 9800gt were updated about a week ago. Does anyone have any ideas?