/MODAL makes widgets disappear

["D. Mattes" <dmattes(at)u.washington.edu>]

IDL gurus!  i have a strange one for you, and i hope you can help.  i
created a widget that can runs as a modal widget if a group is
specified.  this widget has some CW_FIELD widgets contained in it, no big
deal, right?  well, i get some strange behaviors...

on WINDOWS platform:
no strange effects, nice.

on UNIX platform: 
if the widget is managed in modal mode (by setting the /MODAL keyword for
the top level base), none of the CW_FIELD widgets appear!!!  yet, if the
widget is not run as a modal widget, the CW_FIELD widgets *ARE* there!

any insights into this problem?  specifically, a way around it would be to
not use the /MODAL keyword for the top level base, but i need the modal
effect.  is there another way to achieve this, say with xmanager?

please also reply to: dmattes@u.washington.edu

thanks in advance,
david mattes