While I'm at it, there were a couple of other threads a long time ago that complained of a similar error, but in the erase stage rather than the lock stage. Do you think it could be the same thing?

http://empeg.comms.net/php/showflat.php?Cat=&Board=bigs&Number=43878
http://empeg.comms.net/php/showflat.php?Cat=&Board=empeg_tech&Number=30144

If so, where would I put the Sleep command?
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Tony Fabris