The main window has no title bar when run under the xfce window manager, so cannot be moved around. I looked through the preferences but found no way to enable it. This is particularly a problem since task-xfce-desktop currently includes quodlibet as its music player.
reassign 727650 xfwm4 thanks This bug turns out to be a xfwm or xfce-panel bug. Apparently the window manager sometimes opens windows snapped to the top of the screen, even though there is a panel there, and so the panel obscures the window title bar. Seen this happen with both quodlibet (repeatedly) and evince (at least once). This is in the default xfce configuration in Debian wheezy.
It actually helps to provide some information on the forwarding but itself… Fwiw, I do use Quodlibet and Evince on Xfwm4 on Debian Wheezy and I never had such a behavior. Regards,