When I encrypted my wallet (Bitcoin QT), I did so with a 12 character passphrase. I checked it about a thousand times before committing to it...even had my wife read the characters back to me after I checked them. I wrote it down, printed it out (paper backup)...etc. etc.
I have 3 BTC on the wallet - and today decided to move some back to Coinbase to have some to "play with".
Much to my dismay...Bitcoin QT is telling me my passphrase is wrong.
I'm not stupid and as mentioned, I took ridiculous steps to ensure I copied everything correctly.
Please help. A reward will be given in BTC for anyone who can.
Cheers,
Shankopotamus.