I transferred the last days some coins to my back-up wallet cos my wallet size is exploding (6Mb), all transactions succeeded, except the last one from yesterday.

Money is not in my wallet anymore and in the transactions historie I can see following,

19-1-2014 12:00 To FyxhBbEjhfWQznDHjrJWpCgcz8WuiXuq8E, debit -500, transaction fee -1,74, transaction ID 7b55bba6ad2c75a4c1211c7fc33ad891012579effe421093dfdd2d9152561d6b

However Status 0/unconfirmed.

After that transaction I got three mined received transactions, they are all confirmed en show up in my balance.

Upgraded just to 1.1.5.7-g71-prod/70

What can be wrong, are these coins lost??