Thanks for your comments, James. Yes, the Ryzen 7 2700 "processor" including a graphics card was definitely my bad. I think I may have a handle on what's going on now, but I'll know only after I try installing my new graphics card it this evening. You were absolutely correct about the output ports. I bought a MSI Geoforce GTX 1070, and it has three Display Ports, 1 HDMI port and 1 DL-DVI-D port. So, I bought a DV1 to DVI-I adapter and a DisplayPort to VGA adapter and hope those will do the trick. Fortunately, my computer is much younger than my monitors, and it seems to have all of the PCI Express slots and supplementary power connectors that the newer graphics cards mandate. Well, at least I hope.
ROBERT A. MERRING
ATTORNEY AT LAW,
ARBITRATOR AND MEDIATOR
3489 Windsor Court
Costa Mesa, California 92626
Telephone: (714) 444-9922
Facsimile: (714) 444-9944
Internet: rmerring@merringlaw.com