DVR Chatter

OK...they swapped my 6412. All working as one would expect.  Now I have to enter 3 digits
(leading zero) to enter a channel number. There is a setting somewhere where you can tell it
to look for only 2 digits. For example, for channel 52, I now have to enter 052. My old box
enabled me to enter just 52.  Does anyone recall where that setting is ?  It has to be on the box
somewhere not the remote, but I have the same remote and the same Harmony remote and they
both now require 3 digits. I can't find that setting anywhere.  ARRRRRGGGGGH.  (probably brain freeze..I'm probably looking right at it).