[kh99]

I was going by what I saw in the code, but just to make sure I did a test and it seems that if a userid is an admin and is listed in the config.php file, the user can execute queries even if they have no other admin permissions and are not a superadmin. (They don't see the Maintenance menu at all if they don't have that admin permission, but it doesn't stop them from going directly to admincp/queries.php).

Anyway, what you posted above looks right, and you're right, if there was any error in the config.php you'd know it. So triple check the userid as Brandon suggested, and maybe make sure that you're actually changing the correct config.php file (if you're uploading it after editing, did you upload it to the right place)? Edit: ...and did the file get overwritten successfully?