I'm doing a family tree and working with a small 13" monitor is difficult. I have a 25" HP Pavilion Monitor I used with my old Windows system. I tried plugging it in and what I see is the opening Orange screen that appears when starting the MacBook from a cold boot. It seems some information is getting thru but will not display the screen I'm working on. There must be setting to allow for a second screen but I can't find it. The external monitor is full HD and the connectivity is VGA HDMI.
David
David