I helped a friend setup a RM-LV900 with a GI cable box over the last weekend. (I don't remember the model###).

None of the codes worked, so we had to learn every command that they thought they would need. Everything worked fine. Including the channel up/down repeat.

A dumb question...Did you hold down the GI box's buttons continuously while learning them? If you did, then I admit I'm a bit stumped.

FWIW, I was VERY impressed with the 900 remote. It's a nice size and the buttons are arranged fairly decent. THE remote under $60? (I'm not very crazy about searching for and punching codes ad infinitum that the OFA's require.)