Hey, I guess you can't help me much without the make and model of everything involved in the problem! ;) Sorry about that...

Here's what I found on the bottom. (I looked all over it before but in order to get to the bottom I had to move the stuff on top...)

Motorola DCT 5100/1005

I did a quick search here and only found the same as in my first post, someone saying to try GI or Jerrold. I tried the above codes that I found, maybe there is another one that might work?

I have also tried 0052 and 0055. And while the Yamaha receiver seems to accept them ("OK" displays on receiver L.E.D.), the control will still not control the cable box.

Thanks for your help!