Comment 34 for bug 550337

This bug is not dead, but it is a video driver problem, apparently. I just experienced it with Stellarium 0.15.1 under Windows 10 on a brand-new Lenovo Z50 laptop, which has ATI Radeon graphics.

To reproduce the problem: Put Stellarium on the screen in full-screen mode, then try to use Alt-Tab or Windows-D to get to another app or to the desktop respectively. Stellarium hangs.

In my case it seems to have gone away after I updated the ATI Radeon drivers.