HP-28S: Key press problem

[JDW]

Thank you for the recommendation on the 50G, damaltor. By the way, have you used or been tempted to use "Tree Browser" on your 50G or any of the software add-ons by Andreas? I've asked this in other threads but no one replies to me. Makes me wonder why. I understand the software isn't free and the author locks it down to a single device, but the software looks interesting nonetheless, and I've love to hear actual user experiences about it.

It was mentioned that "SpeedUI doesn't work on the 50G." Is this due to the fact that code written for the 48 isn't compatible with the 50? Or is it because something similar is already incorporated into the 50 and therefore SpeedUI is no longer needed?

Thank you.