Are you trying to use the nVidia control panel or just the Vista Display
Settings page?
"Michigan_D" <MichiganD@discussions.microsoft.com> wrote in message
news

D218200-1076-45D2-8168-C32DD28D14F6@microsoft.com...
> Hello everyone...
>
> I seem to have a similiar problem. I'm running Vista Home Premium with
> Nvidia GeForce 8800GT connected via DVI to two ViewSonic VP2030B Monitors.
> For some reason I cannot get them into dual mode. Any advice?