Thanks for all of your responses.  I still have not resolved the
issue, but I have eliminated some possibilities:
1.  Renaming delay_1_msec did not solve the problem, so I don't think
this function was already defined.
2.  Making the count variable local instead of global didn't solve the problem.

I get the feeling that there is something I omitted that
intermittently causes problems (much like the RA4=0 issue in the other
thread - omitting this command was a mistake even though another
program worked without it).

Maybe my way of creating a delay is inferior and needs to be replaced
with something better.

-- 
Jason Hsu
http://www.jasonhsu.com/swrwatt.html
http://www.jasonhsu.com/swrwatt-c.txt
http://www.jasonhsu.com/swrwatt-asm.txt
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