2) When I try to open a new main window via Toplevel, I get what amounts to a second application running

use the Tk::Dialog or the Tk::DialogBox widget: 

$dialog= $mw->Dialog(-title => 'dialog', 
   -text => 'are you sure?', 
   -default_button => 'OK', -buttons => [ 'OK', 'Cancel'])->Show( );
if ($answer eq 'OK') {
}

[download]

Software speaks in tongues of man.
Stop saying 'script'. Stop saying 'line-noise'.
We have nothing to lose but our metaphors.

In reply to Re: Perl/Tk Oddities by Erez
in thread Perl/Tk Oddities by TomKane

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