UHF Pro remote *won't* control TV2 on my 622

[griz_fan]

I've had my 622 for a few weeks, but always had it in single mode, didn't even have the cable run to another TV, until this weekend. That part works fine, but I can't get the UHF Pro remote (blue key, black #2 on it, version 6.3) to control anything on the 622. It controls my TV just fine, but I can't seem to get it to control the 622, and I've tried both single mode and dual mode.
Any tips on where to start?

thanks!

 

[rcdallas]

goto system info, use the buttons on the reciever itself if you have to, take the #2 remote and hit the record key a few times.

Should work provided the UHF antenna is screwed onto the back of the 622.

 

[Clancy]

Check the remote address.

 

[griz_fan]

Thanks guys. Turns out, both remotes were set to address 1, until I followed the advice from RCDALLAS, which updated the TV2 remote to address 9, and now everything works.