Rails Working, Yet Strange Permission Error

Gotta say I'm loving Linode and the great documentation/control panel.

However - weirdest thing:

I followed the library docs to install Rails, Passenger and Nginx, on Centos.

It worked. However when I clicked on "About your applications environment" from the default Rails index, I get a permissions error.

I can install and use gems, scaffold resources, and run migrations. Everything works normally.

I since started a fresh Linode, this time setting up Ubuntu, rails, Passenger and Nginx, using a stackscript.

Again, worked fine. But that same strange permissions error when I clicked on "About your applications environment" from the default Rails index.

Has anyone else encountered this? Should I worry? Or just continue happily building my Rails app and forget about it?