I had been using a dual monitor setup with a Hanns.G HW-191D 19" LCD and a Cintiq 12WX for over a year on XP without a hitch. Since installing Windows 7, both monitors are recognized but only one can be active at a time. When I change the Multiple Displays option to "Extend these displays" it automatically switches to "Show desktop only on 2". Hitting apply will cause the active monitor to de-sync and the other to turn on as would be expected.
My video card is an NVIDIA GeForce 7950 GX 2 with the most recent drivers
. Any ideas what might be causing this or how it could be fixed? Thank you.