I recently refreshed my XFCE svn install with the latest code, including the new
panel stuff and mplayer fullscreen doesnt work correctly now.  If i tell it to
go fullscreen i only get a small rectangle in my upper left corner.  The content
is scaled correctly so i only see a very small portion of the video.  If I
unfullscreen it i then see just the small window with the title bar and if i
fullscreen it back i still only have the small window.  If I maximize it will
unfullscreened then it mostly works except there is a small strip at the bottom
that mplayer doesnt cover that is about the size of my taskbar.  If i tell the
taskbar to autohide and try to fullscreen it after maximizing the window, it
works fine.  But it still starts small if i have the taskbar hidden and i try to
start it fullscreen.