I get this error when I try to open bitcoin:

http://i.imgur.com/dbHi7Vo.png

I am using Win 7 64bit with an encrypted wallet and Bitcoin v0.6.2-beta.

To fix it, I tried running bitcoin after moving all files (except wallet.dat) out of the Bitcoin AppData directory. It didnt work.

Then I tried installing bitcoin on a second computer, redownloading the entire blockchain on that computer, and then copying my "wallet.dat" file to the Bitcoin AppData directory. This didnt work either. I got this error.

Lastly I tried running bitcoin with "-detachdb", but that also didnt work.

Is there anything else I can do?