Hi, I hope someone can give me some suggestions.

I'm Programming a PIC18f4550 using the PICkit 2 and I've started to have 
problems with it/the pic.

this setup has been working without any problems, but over the last 2 days 
I've started to have 2 different intermittent problems, but they may be 
related.

1. I program/verify the pic and all seems ok but the pic doesn't start and 
the I/O seems to float. (this is with an external frequency generator to 
isolate the xtal start-up.


2.Sometimes during programming or verification the "PICkit 2 programmer" 
software freezes leaving the busy light on. if I unplug the programmer from 
the PCB there is
no change, if I unplug the USB port from the programmer  the software then 
reports PICkit2 not found.... on repluging back in the programmer will 
normally try to
program the pic without intervention.


Any ideas as its getting really frustrating

Richard

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