Duh.....

OK, the first picture shows the new high-powered, HD-capable monitor, looking great at a mere 1280x800, nicely saturated and crisp. Yet the higher resolutions are denied me...why?  WHY?


The second pic shows me happily spectacular at a super-dense 1980x1080 on the monitor...and a single clue as to what the problem was before....  A solitary, glaring, damning, dunderheaded clue.