I have a SP2013 installation with language packs installed. Now I wanted to change my preferred language so SharePoint uses that instead of the default language of my browser settings. When I click "My Settings" and then "My Language And Region", the page just refreshes and nothing seems to happen.
On the internet I found the link to the page, when I use that; the correct page opens, but saving the changes results in an error. So apparantly something is wrong there, I just don't know what. Where could this setting be located? I thought of User Profile, but isn't the same functionality in Foundation as well (which lacks the User Profile Service)?