These are my display settings. "Allow screen to auto-rotate" is ticked. I am running Windows 8.1, I have done all the updates available.

I have a 15" Multi-flip, but when I flip the screen over into "viewer" mode so that the screen is facing away from my keyboard, but not down into tablet mode the screen does not rotate 180 degrees automatically. This results in an upside-down display.

How can I fix this?