Just to clarify, the video cards do not have VGA connectors; they only have the following (taken from the website specs):
1- DVI-D (Single Link)
1- DVI-I (Dual Link
1- Display Port
1- HDMI
The only thing that I currently have that will physically connect to the cards is an adapter from the VGA monitor to the DVI-I connector on the card (I just happened to have two of these laying around). This works for one of the cards but not the other. Microcenter online support says only one works because of the crossfire.
These "old" analog monitors that I have work, but eventually I know they will have to be replaced with new monitors, but for now I would rather keep them if I can.
If there is any way to connect the analog monitors to Dual Radeon HD6790 PCI Express cards in Crossfire™ (again taken from the online specs), then that would be my first choice.
If there is no way to use the analog monitors in a dual setup, but I can with new monitors, then I'm open to suggestions for new monitors to purchase. This is for work using AutoCAD, and 3D software, etc. so I need decent monitors that will be as sharp as the analog monitors I am currently using (Phillips 109B 19"), and with no mouse lag. I ran into these troubles before when I replaced an analog monitor with an LCD monitor at home. I don't want to spend more of the boss's money than I need to, so I'm not looking for the best, just something comparable to what I have now.
Any suggestions would be appreciated.
After I wrote the above, I found an adapter online that looks like it might work on the two existing VGA monitors that I have. I would connect one monitor to Video card #1 via 'Male DVI-D to Female VGA connector' (http://www.uxcell.com/dvid-vga-male-female-converter-adapter-for-hdtv-lcd-dvd-p-5862.htm) and the other monitor also connected to card #1 via ‘Male DVI-I to Female VGA connector' that I already have. I'd like to get some input on the possibility this working for a Dual monitor setup.