I've had the black-screen problem only when I play a saved game from a previous version (any previous version). I know the patch notes say it won't affect you're saves, but it never happens in my fresh saves. Are you running a patched save or a fresh save?
I had a similar problem with menu scrolling in Morrowind, and it had something to do with my mouse (touchpad) setup. Just touching all bases here, so bear with me. Are you using a touchpad or running any software that enhances your mouse, gives it extra functions, etc.?
