MMM no worky in flux

[JThiessen]

I went down today to try to drive the Flux on 4S. Its been sitting for two long lonely weeks down in the dark of my garage, and thought I should give it some love. I loaded in my 2 new PQ 2S packs, turned on the DX3, flipped the switch, heard the initial "on" song it plays, but not the remaining "beep" "beep" "beep". Flipped the trigger FWD - nothing, Reverse - nothing. Turned everything off, and tried it again - same results. I checked steering, and it was fine. The yellow and green lights are on, but flickering somewhat (seem to recall this is normal). I double checked the plug into the reciever, but its good.
Two weeks ago, I reprogrammed the unit, and adjusted all the parameters - but it operated correctly when I shut it down.

Any suggestions?