Well, I tried again and this time was able to create a new account and modify the pen choices page as well – so it was apparently “fog in the cockpit” the last time. 8^)
Another question: I wonder how to include an image…I tried to do it by following the example in your smiley face tutorial in the wiki. There, the URL of the image was simply inserted in the text. I tried to do a similar thing, but with a dropbox.com URL, and all that happened was that the URL appeared in the text. Any pointers?