I'm not familiar with the DVR 522, but I am familiar with the ViP 622, the SuperDish 121, as well as the DP34 and DPP44 switches.
It's not likely problems just show up, so if you have a problem with your dish, it must of just been borderline before, or your LNBF just went out. However, it is possible that the SD-121 can be in alignment for the 121/119 positions and not for the 110 position, especially if you have a very strong signal on those.
I'll assume you have a SuperDish 121 and a DPP44 switch.
Some quick checks are:
To get the latest software, all tuners should be off, but the receiver plugged into an AC power source, may take about 10 - 30 minutes.
With the power supply to the receiver and the power inserter unplugged, run a cable from the 110 LNBF to your receiver, but by-pass your switch, the power inserter, and any separater you may have. Then plug in the receiver and go to the point dish screen and see what you have on 110, you may have to switch transponders to find an active one for your area.
Note: To make sure you have this set up right, you can get do this test with the 119 and/or 121 LNBF's as well.
Also, you can set this up using the 119 straight through to your receiver, power up the receiver, but don't turn it on. Hopefully it will download the latest software within 30 minutes.
There could be more specific requirements for the 522, but maybe someone will answer that.
Let us know what you try.