Hello, I had some bitcoins in a wallet.
I make a transaction to a new wallet who was offline.
now, 1 hour and nothing ...
I make a mistake?
I was on the same pc,
I have backup my wallet
I have delete wallet.dat form the folder bitcoin
I open again bitcoin, so automatickly a new wallet.dat came
I take the address of the new wallet
I backup the new wallet
I put the old wallet
send money to the new wallet
put again the new wallet,
The coins don't appear ...
Yes. You made a mistake by playing around with the wallet.dat file. If you have backups of both wallet files, then you are probably ok. You can use blockchain.info to check the address that you sent the money to and see if the money was actually sent. The solution is probably to restore one of the backed up wallets and then import the other wallet. That will put your wallet back into a usable state and restore sanity.