Just refreshed the blog. After moving our domains to our own servers, I forgot the old domain to be transferred as well. So the blog was not reachable any more. I changed the blog URL to blog.atari-home.de now, and the blog is back online. I just have to rebuild the image links.
The Falcon is now running quite fine and the CTPCI works great @ 1920×1200 resolution. Take a look: