- Some plugins (e.g. G-Force 2) open a weird style window that is not
managed by the X window manager even if the managed option of WINE is turned
on. These windows cannot be moved. I figure that a possible reason may be
that these windows need a parent (which we don't have) to get focus.

- Some plugins (e.g. vis_punkie.dll) render a few frames, then freeze or
hang for some time, then resume.

- Only one instance of xmms-winamp can run at a time due to /tmp/winamp.
