I have ~5 BTC on an old laptop (Windows 7) and I tried moving the balance to another client. At first I tried moving about 0.1 BTC just to see what would happen. The client debitted the balance but it never "took" (that is, I never received the 0.1 BTC, and I know it is a good address). The client informed me I should update immediately so I updated to the latest version (v 0.8.0). The client would not load the wallet so I googled around and found a solution that said try to move all the files out of this directory EXCEPT for wallet.dat:
I made a copy of this folder elsewhere and emptied all the files except for wallet.dat, and I am now downloading the blockchain. However, intermittently I get this error:
System error: CDB(): can't open database file wallet.dat, error -30974
The error is thrown by this part of bitcoin's code.
ret = pdb->open(NULL, // Txn pointer fMockDb ? NULL : pszFile, // Filename fMockDb ? pszFile : "main", // Logical db name DB_BTREE, // Database type nFlags, // Flags 0); // snip 7 lines throw runtime_error(strprintf("CDB() : can't open database file %s, error %d", pszFile, ret));
Which causes the client to close. Right now I am simply re-opening bitcoin, where it will run for awhile (download a maybe a few hundred blocks or so) and then close again.
So the current issues are:
1. The 0.1 BTC I mentioned above is still showing as being debited from the total inside the local bitcoin client though there is no receipt at the receiving address, and this is confirmed by blockchain.info
2. I cannot create a new address to send coins
3. The client will not load the blockchain without indicating the error above and closing