For anyone else who has had this problem with the pronto not learning from the original remote and its not listed in the factory database, i have found a solution that works, well atleast in my scenario.
When the pronto says "learning IR Code" i pressed the button on the original remote and held down for the duration. ie it got that initial blast and then the repeat sequence. When i tested the IR signal through the same command screen the volume did increase but then carried on increasing for another 10volume notches.
I initially thought this wasnt right and disgarded this code attempting individual presses which worked, but not repeat when the button was held down.
I went back to the initial code (the one that changed it 10times) and then edited the duration right down to 0.01 (not default) and hey presto a button that works and repeats.
I hope this helps anyone who has had a similar frustrating problem!
