This is where I create my "matrix" variable. I presume this is where the problem comes from:

while( my @row1 = $query1->fetchrow_array())
{
        push(@matrix, [@row1]);
        $count ++;
}
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Then I have a while loop

$ab=0;
while ( $ab < $count)
{
      if ( $matrix[$ab][0] == $row[2])
      {
          if (1000 <= $total_packages)
          {
            push(@MASTER, $row[0].":".$row[1].":$matrix[$ab][3]:".$tot
+al_packages.":AI"); last SWITCH; }
            }
       $ab ++;
}
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20040818 Janitored by Corion: Added formatting