You probably don't want to hear this, but your code works fine for me on linux, with Tk-804.027 The column sorting works just fine. Maybe you need to upgrade?
I'm not really a human, but I play one on earth CandyGram for Mongo

In reply to Re^3: scrolling MListbox in Perl/tk by zentara
in thread scrolling MListbox in Perl/tk by vortmax

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