I just migrated to v3 using the method described in the transition guide.  I had previously moved all my coins into one address as the original transition guide explained.  However, after importing my private key I lost about 60 DMD.

Before I touch anything, how do I recover the rest of my coins?

UPDATE:

I went back to my old wallet (v2.1.0.4) and reopened it to see if I have any coins in any other addresses.  Again following the directions in the transition guide I used INPUT in coin control to see where all my coin were.  They were all in ONE address.  This is the address for which I dumped the private key and then imported into the new wallet.

However, on the main display I noticed I hade minting transactions that were deposited to another address, not my wallet address.  I had moved all my coins from this address into my main address before I converted to the new wallet.  In any case, I dumped the private key for that address and then imported it into the new wallet and viola!  all  my coins are now in my new wallet.  Perhaps the devs can explain why this happened.