"When you do boot into windows, do Nvidia control panel and Windows see your 2 monitors? If so have you been able to set the monitors configuration set-up you desire?"
Is there anything wrong with your GeForce 210?
Have you used and tested it in another system?
"Suggest you re-seat the video card and double check its power connectors. Also try the VGA, DVI-I and HDMI connectors to see if that makes a difference.
Check the DVI video cable you are using for compatibility with both your video card and its allocated monitor DVI connectors.
Your VGA card as a DVI-I socket and your monitor may have a newer DVI-D connector.
Your DVI-I video card connector has four extra pin insert slots at one end. If you have a male DVI-I connector, it will have one flat metal prong at one end surronded by the 4 small pins. If this type of male DVI-I connector will fit your video card perfectly. Unfortunately if will not fit the DVI-D female connector on your motherboard or most newer LCD monitors which have DVI-D female connectors. Some folks have forced them in breaking or bending these four vga pins causing havoc with their video display(s).
You should be able to run two monitors directly off the GPU anyway without a KVM switch.
Have you got both the power cables connected to the graphics card ?
Have you checked to see if you are running the latest BIOS for the motherboard ?
There might also be a firmware update for the GPU.
I recommend that you boot into windows and then change the multiple monitor settings in both Windows and Nvidia Control Panel to make whatever LCD display is attached to your GeForce 210 the # 1 / Primary monitor. Once you have done that save settings, return to BIOS, select the video "PEG" option., reboot and see if you can get pass the "Windows Starting" screen.
As far as I am aware there is no difference after bootup between the PEG and the other options apart from it just guiding the BIOS to which display should be used.