I have all five Blackwell games, but find they are unplayable. When I try to run them full screen, I get a black screen. With two monitors (on duplicate mode) I get one black screen, and one white screen with a big arrow icon in the center of the screen. I can't move it though. I also hear the intro music.

I have to put the game into windowed mode to actually see anything. Windowed mode is too small to play in and I cannot change the size.

What can I do so that I can play these games?

Edit: I think I solved my problem. I ran a compatibility checker on the launch shortcut. Apparently, the games don't like Windows 10. The checker tried running the game as Win 7 and that seemed to work.