Yeah, I've got the black screen problem too. Is this the ATI video card problem I've been seeing on the forums? I noticed you have a 9800, and I have an X800 SE, so I was wondering about that.
I am pretty miffed by this though, as I had to spend nearly 3 hours just getting the game installed. Ran into problems during installation as well, though all is well now.
If anyone comes up with a solution to this black screen, I'm open to suggestions. I just hope we have a patch soon. <_<