Ashbery76 wrote:I don't use multiple monitors but yes the motherboard has a video adapter.
As I just said over on the Steam forums, the two potential fixes I'd try next are:
1) Reinstall your graphics drivers (even if they're 'up to date', applying a recent windows update might have corrupted them).
2) Try going into the Steam properties for Stars in Shadow, and disabling the 'show in-game overlay' option.
If either works (or doesn't), please let me know.