Yes, it seems as though MessageBox is the exception. As you show, one can have the main window 'withdrawn' and the message box appears. Obviously there is some flag that allows this (or am I assuming something here?). All I'm asking is that the dialog box have the same ability. I'm willing to "manually" set the proper flag (if possible) for Dialog. At the moment I've resorted to making the main window small and in one of the corners (it has nothing in it). Maybe all of this is buried deep inside Tk and it can't be changed from the Perl prespective. While I do remain hopeful, I have a solution that works for me.
Thanks to all.