Can't edit profile, possible problem with SPACE in name

More a message for Erik, but just in case anyone else has the same issue. My Login name, and my user id are both "David Singleton" with a space between them. I see that in many places in 2007 it has translated the space to a "-". What this means is that if I try to edit my profile, then it says forum not found. The link is to ...David-Singleton I have tried David%20Singleton, and even that does not work.

Any ideas?