That's interesting. Yes, I commented out the entire line, but got no error message. It was simply as if the program had hung. I had to CTRL + C out of it after I had waited a couple minutes or so. (Tried again later and it went over 12 min. before I lost patience.)

Just for fun, I just ran it with the "use threads;" implementation, and it gave me the exact same results as with the 64k stack size.