Just an update. Continued to have this "sticking" problem on changing channels -- it would recur every few days. Went to other forums (Motorola and Comcast) to see if anyone had such problems and was blaming the Motorola receiver. Didn't get much there. So, dug up the old Comcast remote that came with the Motorola DCT5100 digital receiver. All seemed fine. So, I had iPronto "relearn" the channel +/- codes and then went ahead and uploaded this to my laptop, saved it, and downloaded it back to the iPronto. At first try, seems much faster/crisper on the change. It's been at least six months since I'd downloaded an ICF, so maybe things were just getting gummed up in there?? Sounds odd, but then it's Philips' iPronto. I'll post again in a week or so.