Thanks Lyndel, nice to get a reply.
I understand that the problem is with the Sony, not the Pronto. I contacted Sony and they told me they could give me codes ONLY if I was going to use them with a Sony remote (wow, how loyal) but the URL you gave could be a source for some info as well. I see that there's a discrete code for Progressive there so that could save me at least a few button presses. Thanks.