> While downloading new code onto both the boards using the ICD 2 debugger in
> both debug and program mode, the outputs seem to be highly unstable - LEDs
> connected to the outputs seem to flash while the program downloads.
>

In section 4.0, specifically 4.7 of the datasheet for your PIC, has
the state of registers during a reset. The TRIS registers go high,
tristating all the I/O pins and the PORT latches either remain
unchanged or go unknown (during brownouts and poweron). You may need
pull up/down resistors to keep outputs held during reset.
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