How about following the above persons advice and move away from the worst ever bitcoin wallet, its not safe in the first place, and with Multibit and Electrum you will be a lot safer and have a lot of more ease of access, so I suggest you follow the above advices and switch to electrum. Leave once and for all the worst bitcoin wallet out there which is blockchain.info for sure. Why it is ? Because it has the most high number of successful hacker attacks which translates in loss of your bitcoins.
I strongly support this, people should avoid using online wallets.
You do have control over your private keys but they also do, which is unacceptable.
If you want to avoid these types of problems, start using a decent wallet.