>Be very careful about your MCLR line.  If even the tiniest transient gets
>into this part of the circuit, it can throw the PIC into "partial reset"
>which is essentially "the loony bin".   I use a 10K resistor to 5V, then a
>ceramic capacitor right up next to the PIC, and short lines to a robust 5V
>bus.  In a really noisy environment you may also need a small electrolytic
>on this line, as well as a small electrolytic next to your PIC, adjacent
>to the ceramic cap you already have.

Be careful about capacitors on the MCLR line- they can cause ICSP to
misbehave.  In fact, the usage guide for the ICD2 specifically warns
against putting any capacitors on MCLR.

Mike H.

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