UltraVNC

I took your hint and disabled 2 of the monitors. The driver would activate with only 2 monitors running.

I went back to Vista and it was the same story. No active driver with 4 monitors, active driver with 2 monitors.

Here's what it says for 4 monitors:

Tue Dec 01 19:29:04 2009
.\vncservice.cpp ...

Yes, I have rebooted several times. I have installed/uninstalled the driver several times.

I do have 4 monitors. I have a Sapphire Radeon 4850 X2.

However, this did work when I had Vista 64 installed on the same hardware.

I may be able to reboot into Vista 64 since that is on a different disk ...

I used the device manager to add the mirror driver, using the vista64 drivers. I can see

Device Manager -> Display adapters -> mv video hook driver2.

The driver is functioning according to the properties page.

However, when I connect with the viewer, and 'Check the Video Hook Driver' I get 1.00 ...