[Newbies] Problems with Morphs on PluggableSystemWindow

[Mateusz Grotek]

Mateusz Grotek pisze:
> Hi.
> I have the following problem with morphs.
> I've used PluggableSystemWindow on which I've put some morphs. But after
> minimizing it morphs do not disappear. They still are visible below
> minimized window. What can I do to make them disappear while minimizing
> window?
I think I should write IN window, not ON window...