We want to change the page that users are directed to when they are not authorized to view CMS Desk, e.g. when a user specifically requests the URL 'http://<site>/CMSDesk/' instead of being directed to /CMSDesk/accessdenied.aspx we would like them to go to /SomeOtherPage.aspx

I've checked the site settings, web.config files, code-behind files and... I can't see anything that would direct users to CMSDesk/accessdenied.aspx so I'm kind of puzzled at how this is happening.

Last resort would be doing a response redirect in the code-behind of the access denied page but we'd rather not do that if possible.