o ptksh:

   o With TRL Perl when using history the output
     shown on screen is one key behind. (same in
     perldl when tk is loaded with -tk)

   o Tk::Pretty::Pretty may call itself recursivly

	::_o bug: -labelPack return array ref that includes
	-in with ref to frame -> to frame itself and so
	it recurses on -labelPack