5
Ok, I've gone through and made sure all those files have the correct CHMOD. It's still doing it. I noticed it for the first time yesterday, but I don't recall a specific event that caused it, I'm not sure. I've tried removing any recent modules I've added incase there's a clash, but it doesn't make any difference.
It doesn't seem to effect the actual main menu, it's just an error that appears when I either update a module, or install a new module, on the page that lists all the updated files.
If it doesn't seem to effect the mainmenu, can I just leave it alone as a quirk? Or does it have other effects I just haven't noticed yet?