I'm having problems registering my Witcher 2 game. I downloaded it from GOG, but did not register right away, and then all the server problems happened and I couldn't log in to register. Later, I was able to create a new account (from the launcher interface), but for some reason it won't accept the CD-key emailed to me by GOG. I KNOW I am entering it correctly. It just always comes back with "Invalid activation code".

So I am chalking this up to the continuing back-end problems CDProjeckt is having right now.

So now I get to my question. Can I get to a point in the game where I won't be able to play the DLC quest? I don't want to stop playing just because I can't get it installed. Currently I am still pretty early in chapter 1.