Yes, The memory could be full. It sounds like your babysitter knew more about screwing up a Cinema7 than "playing around" could explain. It even occured to me that perhaps she "broke" yours, and in an effort to hide this fact replaced yours with one from someone else's system. Spooky.

In any case, the SETUP 980 sequence should clear all programmed memory, and the SETUP 981 should clear everything, even the device codes, so you can start from complete scratch again.

Lesson to be learned? Hide your universal remotes from the babysitter! ;-)

Good luck.

Dave

Re Cinema 7s that won't learn. First thing to try is a fresh set of batteries. Many programmable remotes have built-in "brown out" detection to protect the non-volatile memory if the battery voltage gets too low to support reliable write operations. Since the microcontrollers used in these things usually continue to run down to voltages way below the brown out trigger, the first sign of low batteries can be that the unit continues to work just fine in normal use, but refuses to learn new codes.