I have a NVidia FX580 card in a Dell Precision T1500.

The outputs of the back of the card are DVI and 2x displayport.

I tried to run 3 screens from the DVI + 2x displayport to dvi adaptors, but the card won't have it... It'll only run 2 of these screens at the same time.

http://www.nvidia.com/object/product_quadro_fx_580_us.html says;

**Display Support:**
Dual Link DVI-I      1
DisplayPort          2
# of Digital Outputs    3
                        ( 2 out of 3 active at a time )
# of Analog Outputs  1

To me this reads that it will be able to power 2xdvi monitors and 1xvga monitor.
Anyone care to confirm or speculate?