Well, I have my old MX3000 with their own RFX-250 and MRF-350, all program (and IR) are in remote (of course :) ... and programmed with CCS).

So, I take off my MRF-350 and connect new MSC-400, and my MX3000 still works (all equipment even cablebox).

Then, I programmed the new one MX6000 (with CCP), first time with all IR in remote (through RFX and MSC) all equipment works except cablebox (I tried with different data repeats), second time I programmed MSC (with CCP) in order to this one send IR, with same result: doesn't works (just cablebox).

All equipment works great: TV, Receiver, AppleTV, BlueRay but my cablebox doesn’t works.

???