I keep getting kicked out of full screen mode

[Razerpaw]

Everytime I click on something the screen minimizes to desktop. It doesnt crash, it just drops into windowed mode and shows the desktop. Anyone know what could be causing this?

I did set the shortcut icon to start maximized as it was set to windowed but that didn't help. It even does it while I'm at character select. Even if I alt + tab to make it full screen again it will go back to windowed mode as soon as I click on something. Any suggestions would be awesome.