I've since had a similar problem with the permissions settings for a template file. Could you please clarify what settings they should all have?
I have the folder set to 755, but the files are currently at 644.
On a related note, is there a comprehensive list anywhere showing what the chmod settings for all files and folders should be? I'm afraid I found the installation instructions only partially helpful, as they didn't specify whether the settings they described should be applied to all folders and files or just the folders. They also, by the way, instructed me to set all of the php and sql files to one setting, but I then had to change both of the config php files back to something else when I experienced issues with their settings when running the install script.
As an overall result - and as evidenced by my language and template issues - I'm concerned that I probably have other files with incorrect settings. But no definitive, detailed list against which I can check them.
Sorry it's such a long way of asking the question, but I wanted to give you a newbie's perspective