Unable to see 129 channels on 811 receiver

[Poon21]

I have a dish 811 receiver and recently upgraded from a dish 500 to a dish 1000. I'm getting signal strength in the 90's on all there sats (110, 119, 129), but for some reason, only the channels from 110 and 119 show up. Is there a way to have the receiver rescan the sats and pull in the channels from 129? Any help would be much appreciated. Thanks!

[gds]

The 811 is an MPEG2 receiver. You need an MPEG4 receiver such as the 211, 222, 622 or 722 to decode the transmissions.