Dungeon Hunter 5 Problem: Switch to full screen

[Jason Cliche]

Friend of mine asked me to install DH5 and see if I could get the game to play on my Surface 3 Pro I7 Win 10 and I couldn't get the game to load. I get a "Switch to Full-Screen Mode to start playing" message when the game loads. Friend has a Win 10 Lenovo Helix and has the exact same issue. Another friend with a Win 10 tablet (forget the brand) has the issue. 3 people on different machines getting the same issue. I've looked all over the internet and I can't find a solution, it's driving me nuts. Anybody have this issue, or better yet, a fix for the issue? I've read that other games may have the same issue.

Thanks,
Jason