So, I finally managed to register my copy by running the register.exe file in the Witcher 2 directory so I can download the troll trouble DLC. Problem is, it just keeps redownloading over and over again, in an endless loop. The fix listed in the sticky stops the loop, but it simply continues when I try to download/install it again.

Anyone come up with something that actually fixes this problem, or am I simply stuck waiting for CDProjekt to finally get around to fixing their site? Sorry if that sounds a bit harsh; but all these niggling little things are really starting to eat away at me and diminish my enjoyment of the game.

Bump

http://en.thewitcher.com/community/entry/22/

"UPDATE 1:57 AM CET: We've returned to the old way of serving the DLC but this doesn't mean that it solves everything. Most of you will be able to download the DLC. Some of you probably won't. We know what's the problem - it resolves around the DLC CRC being cached but can't do much about it at this very moment. This issue is very important for us as we understand how you feel. We will try to address this issue with a support software in the mean time and this problem should be solved finally with the incoming Patch1 - early next week."