The SEOmoz crawler is showing 236 Duplicate Page Titles. When I go in to see what page titles are duplicated I see that the URLs in question are incorrect and read "/about/about/..." instead of just "/about/" The shown page duplicates are the result of the crawler is ending up on the "Page not found" page.
Could it be the result of using relative links on the site? Anything I can do to remedy?
Thanks for your help!
-Frank