Tamas Rudnai wrote:
>>   Q3) Will I not be able to use RB6 and RB7 for pushbuttons when I'm
>> in debug mode? Or will I not be able to use them at all because of the
>> voltages applied to them by the Pickit2?
> 
> It's not a voltage (aka DC) but a serial communication in between the chip
> and the pickit2. I'd suggest not using these at least during the development
> phase - or experiment phase to learn PIC.

And just to amplify that - no, you can't use them for buttons when the 
PICkit2 is connected, because the PICkit2 has pull-down resistors on 
them.  Well, you could use them for buttons if the buttons are pulled up 
on contact, but you still can't use them while debugging.
-- 
Timothy J. Weber
http://timothyweber.org
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