Buy another key to what? If you mean Blockland then... YES you do have to buy a new key if you have a new computer! yw Badspot.
I do have to buy another blockland key.. :C
He shouldn't have to.Just go to support on the website and get your key back via e-mail.
Copy the key.dat file then.
My other email account mysteriously dissapeared. Seriously.
I emailed Badspot so he could send my key to my new E-Mail address a while ago. He actually did it, so I would recommend doing the same.
I signed up in V8, I doubt he has my record... does a PM work too?