75% Q - no picture
Well, I finally received my Invacom TWF-031 and feed horn.  Awesome improvement in signal quality.  My FTA receivers are both reporting around 75% Q instead of 45%.  I can still see free channels on the FTAs.
 
On the Sky boxes, I've gone from 0% quality to about 20% quality with a BER of 1.5x10-3.  BUT STILL NO PICTURE 

.  I have both LNB cables plugged in to the two satellite inputs and have the LNB set to Universal settings.  When I was in Mexico, I checked a working Sky receiver in Mexico City and the Q was also down around 30%...I think the boxes may just report a lower Q than typical receivers.
 
The diagnostics menu reports "Tune Status: DMOD NOT LOCKED".  The diagnostics also report that the software on the receiver updated in November 2009.  The box hasn't been in Mexico since September 2009, so I've received a complete software update successfully (the GUI also changed) with my current set-up.  I must have been getting a good enough signal from Mexico for a software update, and now my signal is significantly better than that.
 
The only things I can think of to explain why I don't have a picture:
- maybe there is a transponder that the Sky box is expecting to see that is more localized (smaller cone) than the transponders I'm seeing
- there's some magic hidden setting on the receivers that I can't find (hold down this button, and press that button or something)
- I need some signal re-sent from Sky since the boxes have been disconnected for a while
 
Can anyone think of anything else?  Thanks...frustrated as heck...