While condig latest version of MorphicWrappers (soon available), we
found a problem: After setting allowSysWindowsEmbedding in Preferences,
when you drag an opened (not collapsed) system windows to the TrashCan,
not only two error pops up, but the StackTrace is dumped. The problems
are in SystemWindows' #passivate and #activate methods, sorry for only
posting the problem and not the solution...

    Problematic Bye!
    Richie++