Currently Being ModeratedNov 15, 2012 2:13 PM (in response to robert742)
What is VGI?
If you mean VGA - VGA is a VERY old connection type and the 5770 does not have a VGA port.
Do you mean DVI?
The card has a dual link DVI and two mini DisplayPorts. If you mean you need a second DVI connection, get a Mini DisplayPort to DVI connector from Apple or a 3rd party converter supplier.