What do you mean by causing a black screen? When you level up with unspent points the entire screen goes black? Or is the UI visible?
Did you try verifying local files for the game?
If you have a save just before this happens, please email supportdos@larian.com, with a description of the problem and the report.zip file generated by the
D:OS support tool.
I'll also try that my next game, and see if I have a problem...
