[Mr Gee]

I think your options are as follows:

1. Swap for a card with dual VGA (Matrox Millenium G450 Dual Head)

2. Swap for a card with both VGA and DVI-I ports

3. Get a second PCI graphics card with VGA

4. Swap one of your monitors for one with a digital (DVI) output

I'm pretty certain that just an adaptor wont do the trick. As a previous poster said, an adaptor wont be able to convert an analogue signal (that coming from your monitor), into a digital one (needed by the card).

The first option is probably the most straightforward.

Hope that helps.