I like the Mac monitors, they are rectangular, and excellent for Excel
spreadsheets, as they are nice and wide. But sometimes, I have a long
vertical do***ent in front of me and I just want to turn that monitor
90 degrees and read my screen that way. Is there a monitor that allows
me to do this, and what do I need to do to my system configuration to
use a monitor both vertically as well as horizontally?