Well, I'm obviously an S2 licensed racer, but I cannot unlock S2. I just got a new HDD, and managed to save my old LFS folder from reformat, but now it won't unlock S2 and I've got 2 activations left. All it does is come up with an ingame window that says "Unknown Command" with only an OK button under it. I'm definately sure I'm typing both the username and password correctly, and I'm really anxious to get it up again, and start playing the new patch.

Do a clean install and just transfer the skins and sets from the old one.
This should fix your troubles.

Thanks mate, I'll give it a try.

EDIT: Thanks again, that worked perfectly.

Which version did u try to unlock? Version X or an older one?

I got the same problems with an older verion (Q)