Hi, are you learning via the remote plugged into the PC or via the remote direct? Learning direct is far more reliable. Once you have learned a button point the Pronto at a video camera (or mobile phone camera) to see if it is sending any IR at all. If it is sending IR there is a problem with the codes it is learning. If it is not sending IR there is a problem with the learning.

Take a look at the "unofficial FAQ" section (esp here) and you may find some of that info helps!

Stoobie