sorry I've been away for awhile,been busy at work.
Did you disable brown-out reset feature?
Now it works great! I got to try it on with the GSM (wish me luck)
BTW I noticed that when I used USB to UART (Serial TTL) Converter... I did this to display data to my serial communicator, the power from PC provide 4.5v to my PIC. Funny because even I remove the 3.3v supply for the pic to run the blinky program, it still runs, I think the pc provides the voltage to keep it going.
Could this mean that if I Connect the GSM (3.3v) and connect a USB to UART it will provide 4.5v not 3.3v that could harm the GSM? Please give advice. I need the PC to see what I'm doing.

regards,
mbox