I have the domains used for the administration area set to "mapped domain" (I have to for plugin licensing reasons as well as WordPress embedding full URL's all the time). I think the "mapped domain" setting is causing a whole bunch of problems for my admins. They keep getting logged out in different areas of the admin! For example, when they edit a post, they get logged out and send to the login screen. Tried again and still getting logged out. I tried changing all the settings for the site from the sub-domain to the mapped domain, but no luck. I of course left Info > Domain alone and left it as the original sub-domain. The settings tab is where I changed everything. I even left the site for a couple days incase of caching and also tried many browses including Chrome's incognito. Anyone have any ideas about this or experienced something similar?