Comment 7 for bug 550337

The screen starts to flicker also if you press F11. It seems that Stellarium, when run in full screen mode, tries to be the top-window. Perhaps, in the code (I don't have time to see if my argues are true!) there is a point in which the O.S. is notified to put Stellarium always on top. Probably, deleting that line, the problem is solved...

Moreover, if you put Stellarium in the secondary monitor, the bug disappears (I'm talking about the 0.10.4 version). This is a simple work-around for this bug... :-)