Well, I found what the "glitch" was. It wasn't Tk. I declared some shared variables in a deep hash for about 1800 entries. 
my %days;
my @chs = qw (1..30);
my $max_prog_chan = 60;

 foreach my $channel(@chs){
   foreach my $count(0..$max_prog_chan){
     share $days{$channel}{$count}{'channel'}; 
     share $days{$channel}{$count}{'channel_info'};
     share $days{$channel}{$count}{'episode_num'};
     share $days{$channel}{$count}{'start'};
     share $days{$channel}{$count}{'stop'};
     share $days{$channel}{$count}{'makedate'};
     share $days{$channel}{$count}{'description'};
     share $days{$channel}{$count}{'title'};
     share $days{$channel}{$count}{'writer'};
     share $days{$channel}{$count}{'director'};
     share $days{$channel}{$count}{'actors'};
     share $days{$channel}{$count}{'rating'};
     share $days{$channel}{$count}{'length'};
     share $days{$channel}{$count}{'category'};
     share $days{$channel}{$count}{'star_rating'};
    }
}

[download]
That just bogged down things on WindowsMe, but linux just whizzed thru it. I changed it to the following and got things to go ( for the most part). 
my %days;
my @chs = qw (1..30);
my $max_prog_chan = 60;

 foreach my $channel(@chs){
   foreach my $count(0..$max_prog_chan){
         share $days{$channel}{$count};
    }
}

[download]
So it seems Windows didn't like all those explicitly named shared assignments.
I'm not really a human, but I play one on earth. flash japh

In reply to Re: Running a threaded Tk script on Windows by zentara
in thread Running a threaded Tk script on Windows by zentara

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.