For my first outing with Document! X I just pointed it at one of our class library assemblies at random and built the file, and voila! I was even more chuffed when I found that pressing F1 in my source in VS2010 is smart enough to figure out how to find the exact topic in the help file browser. Now I am settling down to start a more serious run at documenting all of our assemblies I find that the next assembly that I added builds fine, but F1 is clueless because it seems to be lacking the appropriate namespace navigation clues, judging by the breadcrumbs.
Since I was just kicking the tyres a few weeks back when I did the successful build I am at a loss to know what I did right, which is frustrating. Anyone got an idea?