Re: Setting – Not Found / No Access
What version of BuddyPress are you using? It is also possible this could be a _nonce key issue if you’re not using RC1, or if you’re using a hybrid of files or file versions from partial upgrades.
The files that this uses are actually part of the BuddyPress core plugin (in mu-plugins/bp-core/), so next on the list of things would be to totally delete the bp-core directory, and reupload them from the RC1 zip, to make sure they are all up to date and valid uploads that aren’t corrupted somehow.
To answer your question, the file specifically that “Settings” uses is bp-core-settings.php. Permissions on the server should be the same as the others, set to 644.