You have to export the Private Keys of your Address into a new wallet. This way the unconfirmed transaction goes away and you can resend your coins.
1.)
getaddressesbyaccount "" will give you all Adresses in use for the Wallet
2.) for all these Addresses do a
dumpprivkey and save the Strings into a text file.
3.) Then Setup a new Wallet either on a different PC or by moving the old Data Directory on another place. If you want to delete all Data make a copy of your old wallet.dat in case something goes wrong.
4.) With the fresh synced Wallet do a importprivkey
After doing this your Balance should be updated and you can resend your coins.
Maybe try to send bigger amounts in multiple batches. I had the problem mutliple times already and sending smaller batches seems to fix it for me.
11:15:49

getaddressesbyaccount ""
11:15:49

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It shows nothing (I do have 283 octo in my wallet, so it's not a corrupt wallet at all.)
I tried loading with -salvagewallet and it just turned the wallet into a corrupted 32 kb file. I restored the original wallet and I'm still stuck here. Please helpe!@!