Hi, I had no drive space on my computer because of sync so I copied the Bitcoin folder from appdata to another drive. I finished the resync successfully .
Problem is I had 0.98 bitcoins now showing 0.51

in my wallet.
any ideas appreciated
Thanks Alot
Are you sure that you didn't copy the wrong wallet.dat or something?
If you are sure it's the same wallet, was it synced before you ran out of space? Maybe you spent 0.47 BTC and you didn't sync it? These are the only two possible explainations to be honest.