martin rudalics writes:
 >  > Aha!! adding (read-event nil nil 1) to bug17046.el instead of the
 >  > sit-for replicates the bug - it looks ok on startup but when I move
 >  > the mouse into the frame I lose the decorations and the minibuffer!
 >  >
 >  > This is with
 >  >
 >  > 	  (visibility . t)
 >  > and :force-onscreen nil
 > 
 > This should give us something at last but I don't yet know what.  Please
 > just post that bug17046.el here so we can strip it.
 >