I've been using my Co-Star with a Motorola Set Top Box for the last while and it's worked well. Today I got upgraded by XFINITY to their new X1 platform which uses a Pace PX001ANM Set Top Box. I've tried adding the box using all of the Comcast and Pace brand codes that the Co-Star has available but none of them have worked. Anyone have any ideas? It's a newer box. I see the option to manually enter a code but I haven't been able to find anything at all. It looks like most Universal Remotes work fine with this box but I can't get the Co-Star remote to control it.