Re:

>
>When the return from interrupt occurs, ID is now 0.  So the code ends up
>indexing the wrong element of the array...
>

Make sure you are saving the temporary data segment in the
declaration for your ISR -- I think it's called ".tmpdata".

Also, make sure you have the latest and greatest version of MPLAB-C18
-- several updates occurred in the past few months, and I, too was
bitten by a int-save bug until I got the update AND I additionally
saved that segment.
--

  ______________________________________
   Andrew E. Kalman, Ph.D.   aek@pumpkininc.com

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