Please visit forum.paradoxplaza.com for technical support and interaction with the developers!
Hello, and thank you for your interest in Crusader Kings II.
Sadly we do not have enough manpower to fully maintain the Steam forums as well as our own forums. You are most welcome to post any issues or thoughts on these forums, but you should be aware that the chances of an official reply to your post is very slim.
We are however active over at http://forum.paradoxplaza.com
and there you can gain access to our technical support forums as well as mods and all kinds of good stuff.
You will have to register an account in our forums and register the CD key from Steam under "My Games" to bypass the 5 day anti-spam waiting period and gain access to all subforums exclusive to game owners.
Hope to see you there!