Did you try what newra suggested above??
Not yet. I PM'ed Newra a few questions regarding on what happens during a repair. I don't want to lose 90 Nautiluscoins and all my "evidence" that something might be wrong in the case that something is wrong. Right now I have a transaction log on my laptop wallet that differs from the blockchain explorers. I do not want to lose that transaction log. I just thought to check mintpal to see if they received an extra 90 NAUT but they had not.
Are you sure all your coins are on the same address? It is possible that you have 90 in a change address that your wallet knows about. A change address would be a different Address from you main address.. but if you wallet owns it then it will show in your wallet balance.
I think there is a menu item that shows all your addresses and the balance on each address.
But, this would explain the discrepancy because the block explorer would only show you coins in an "address" not in a "wallet".
What PilotofBTC said is exactly what I was thinking too. I was going to suggest that to you next.
That should list all the addresses in your wallet and their balances (including change addresses I believe). Add them up and see how much you've ...