Actually, the black screen problem is caused by cut-scenes.
If your graphic driver is not up-to-date, any cutscene will cause a black screen.
You can try the following things:
1. Delete your savegames, download another savegame somewhere from internet and try to run it.
if that works, then the problem is with your graphic card. You need to install the latest drivers from your manufacturer. Try their website for any download links.
This is the only solution in your case
