Running Win 7, I currently have two 1200x1600 vertical (portrait) monitors and I am attempting to add a third monitor and extend the desktop to it.
First of all, Orientation cannot be changed to portrait for this monitor only.
And, when I select "Extend desktop to this display" and attempt to APPLY, error message "Unable to save display settings" appears.
Latest bios and drivers are loaded.
Thank you in advance for your help.
Don