I can't reproduce it at my machine, simply because the Window Manager doesn't show me the 'X' button in the title bar. So, the only way to close that window is by using the normal "Close" button in the dialog. Try another Window Manager and see if the problem still occur, ok?
I can't reproduce it at my machine, simply because the Window Manager doesn't show me the 'X' button in the title bar. So, the only way to close that window is by using the normal "Close" button in the dialog. Try another Window Manager and see if the problem still occur, ok?