I don't know why your bindings have messed up, but maybe you can manually fix them. Add corrections yourself. I'm hazarding a guess that you have your indices all messed up, and don't realize it. Here is a clue as to how to do it.

#!/usr/bin/perl
use warnings;
use strict;
use Tk;

my $mw = tkinit;
my $hl = $mw->HList(-itemtype=>'text')->pack;
for my $n (0..5){
     $hl->add($n ,
         -text=>"Item $n",
         );
}

$mw->bind('<Key-F1>',sub{$hl->selectionClear;
             $hl->anchorClear;
             $hl->selectionSet(0);
             $hl->anchorSet(0);
             }
      );

MainLoop;

# by Christoph
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