How do I get "Portfolio" button to work in critique forums?

I am a new member. I can't seem to get my "Portfolio" button to work in pictures being critiqued. I went into my preferences and pasteded the URL to my porfolio in the empty box to the right of the one already filled out for my portfolio link but it doesn't work. In fact, I don't know how it could work because they both start out with //www and then the domain, etc.

I would appreciate it if someone could tell me how to get the Portfolio button to work.

Thanks,
Tom

Tom, an impresive portfolio!

The portfolio link now works (the user name field is case-sensitive).