in reply to Font difference

Perl/Tk uses X fonts and I think you should have the same font families on both machines. You can define a font in your Perl/Tk application like with xlsfonts and xfontsel:
use Tk::Font; $font = $widget->Font('*-courier-medium-r-normal-*-*');
Hope that I helped.
      
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SV* sv_bless(SV* sv, HV* stash);