Thanks gauravg11
The good news was the programme loaded onto my mega fine, but ALL I got was ...
Atmega chip programmer.
Written by Nick Gammon.
I tried to continue by sending G over serial comms but nothing, and if I reset the board, I get the same message load.
So I'm guessing that the chip in the duemilanove is totally dead, My new chip has not turned up in the post as yet, but when it does, I'll replace the chip and let you know what is going on with the board.
Thanks