Comment 3 for bug 859081

Sorry didn't look here for a while...
All I can say is that the different behaviour is or was intended at some time, because the vision check is only performed in release mode. So in debug mode the window is opened and immediately closed (haven't checked why). All I have to do is remove two lines, but I'm not sure for what reason the vision check is disabled in debug mode. I think a more experienced developer should comment that.