I upgraded to 5.3.1 from 5.2, which went smoothly. I added the Single Page to make Registration menu option show up in the Dashboard Users & Groups page, as advised, and then turned on Enable Profile. I tried to get to /profile, but says page not found. So I added a Single Page entry. Then when tried to get to /profile again it displayed Warning messages about not having some view.php script. The urls to /registration and /login work, unlike /profile. There is registration.php and login.php script in the /concrete/single_pages/ directory, but no profile.php script. Should there be one? I really need this resolved so I can take my site live. Everyone appears to be AFK in IRC. Can someone please help?