DOH DOH DOH!!!
I hate to admit this but I found the UART fault!! There wasn't one after all!
On my PCB design I had 2 RS232 connectors marked as DEBUG and AUX connections. They where the wrong way around label wise! Oops. Luckily for me both of these they are not used in the actual product, only during testing as the AUX RS232 is switched over to a wireless link when in final installation.
The second reason I could not see the output on the scope was that the scope was set to too high a timebase!! Not enough coffee methinks!
Anyway, all is working well and the design is now progressing with the rest of the software!!
Cheers for all your help anyway!
Dave...