but why are you using different models
Because I already had the card that supported 2 screens and bought the same brand (but not model) for another 4 screens. I guess i'll have to buy another 4 screen card.
There is another system in our office that uses 2 matrox cards but they're both different models. That set up works just fine to run 6 screens. We already had spare PNY cards laying around thats why we tried to use those first.
Thanks for your help guys.