One of my T2C clients has needed a power down reset on the remote twice in the last year. I know that's rare, but does that suggest that I've got something squirrely in the programming? I bring this up because it's not totally outlandish -- in the Prontos, sometimes bad learns would cause the remote to reset, sometimes to revert to a useless factory program.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw