Don't alt-tab out?
Ok. was just letting you guys know cause it would have been nice if it worked even with alt-tab or if it was something i was doing wrong
Probably not as helpful, but if you need to switch windows while playing, I've been running the game in windowed mode. You can alt+tab or windows key + D just fine.
The game started out in Full screen windowed mode for me. I didn't have to change anything. hmmm.