Tried alt-tabbing to no effect. I tried running compatibility mode both as you suggested as well as by using the troubleshoot compatibility option with both Windows 8 and 7 options. None had any effect.
Edit: Thanks to everyone who tried to help. Unfortunately, nothing has worked or improved the situation so I went ahead and submitted a refund request with Steam before my 14 days were up. Hope you're able to help the other guy.
Edit: Thanks to everyone who tried to help. Unfortunately, nothing has worked or improved the situation so I went ahead and submitted a refund request with Steam before my 14 days were up. Hope you're able to help the other guy.