I have read all the posts about how to get 10.9 to run a true dual display, but it is not working.
I go into mission control and uncheck "Displays have separate Spaces". I logged out and back in. The option was checked again. I tried unchecking it and restarting, but when I brought it back up the option was checked again. How do i disable this stupid crippling feature?
Mac Pro, OS X Mavericks (10.9.4)
Do a backup.
Quit the application.
Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/com.apple.systempreferences.plist. Move the .plist to your desktop.
Restart, open the application and test. If it works okay, delete the plist from the desktop.
If the application is the same, return the .plist to where you got it from, overwriting the newer one.
Thanks to leonie for some information contained in this.
Can't turn off "Displays have separate Spaces"
