I bought a JP1-upgraded URC6131 from www.replaytv.us in order to be able to control my 2 ReplayTV units. They program in some new device codes (2001..2004) to control the RTVs independently, and I put one (2001) on the PVR button and one (2002) on the DVD button. I also set two other device buttons to control my VCRs, and did a lot of key assignments with Setup-9-9-4 to make them useful. (Yes, I realize that must seem very tedious to you JP1 experts.) I quickly got to the point where it wasn't accepting any more key assignments (the light didn't double blink at the end of the assignment), so I guess I've exhausted my keymove memory. After reading all this JP1 material, I guess I really should be using JP1 to create my own device upgrades for the VCRs.
Anyway, since doing all that tedious button-pressing programming, twice now my remote's PVR button has stopped working. On one of those occasions, pressing PVR-related buttons on the remote while in PVR mode didn't even light up the LED. On the other, I think it did, but the machine didn't respond. In both cases, using Setup to assign 2001 to the PVR button got it working again.
So my question is, do I have a defective remote, or is this a known behavior of the URC6131 when keymove memory is full?