I'm handling this with a redirect, the only thing I don't like is that it puts the paramater on the url line of the browser. Not too big a deal, just not asthetically (sp?)pleasing.

if( param('Start Over') )
{
  open COUNT, '>cnt.tmp' or die "Failed to open >cnt.tmp, $!\n";
  print COUNT '0';
  close COUNT or die "Failed to close >cnt.tmp, $!\n";
  print redirect( -location=>url() . "?HiddenTag=$HiddenValue" );
}
[download]

And that works fine. Thanks for the help all! (And if anyone knows how to get that param through the redirect without putting it on the url line, let me know!)