Thanks for that. I tried it but I am still unable to get BackyardNIKON to connect. I tried various compatibility modes but still got the same result - the crackle and then nothing. Is there something else I can try? (I need another trial sorry) I tried APT as well, that doesn't work either. My PC recognises it as a D80 though and the Nikon bespoke software (Nikon ViewNX) works fine also.
Happy to purchase this product if I can get it working for my D80. I tried all the suggestions that are listed in the program.