Sounds like $ARGV isn't changing, possibly because the file isn't closed? Try closing ARGV within the while loop: 
   @ARGV = <$responseDir/*>;
   while (<>)
    {
         $newFile = $ARGV, close ARGV, last if /^"$commonField"$/;
    }

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In reply to Re^3: Help on foreach loop by Roy Johnson
in thread Help on foreach loop by Anonymous Monk

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