So just to make sure I got this right: Your game is not frozen and is actually rendering something each frame, which you can see in the preview window you get when hovering over the task in your task bar? Are you running a dual-monitor setup, by any chance? I had some weird stuff happen to me where some applications would open on the second monitor, even though it was turned off, and I was wondering, where the heck my windows had gone. You can try clicking on your application so it becomes the active application, then holding down Windows key and then pressing left or right arrow keys a bunch of times. This will move your window around on the screen and you can even move it between different monitors, so if this is the cause of your problem, you should see your window pop up at some place.

Hey,

First RPG, "The game is not frozen and is actually rendering something each frame, which you can see in the preview window you get when hovering over the task in your task bar." That's correct mate and I'm just running a single monitor.

Second Edgar, "Try using al_set_window_position to fix it". Yep that fixed it. Cheers Edgar