Good day

I have setup my circuit to be able to do serial comms as well as bootloader software as described at this thread:
http://www.picbasic.co.uk/forum/show...ght=bootloader

And have used Mister_e's code here:
http://www.picbasic.co.uk/forum/show...1&postcount=11

But everytime I connect or disconnect using hyperterminal it switch my pic off?
Any idea why this happens?