Thanks for the reply, but this does not work for me. I had not seen the FAQ, but had looked though the setting in Display Properties, and not seen anything like that. With regards to what the FAQ specifically suggests:
In step 1, the PCI card is detected, starting up the hardware wizard, but after installation there is no exclamation mark against the new driver:
When I go into Display properties, an error message comes up:
And once in Display Properties, only one screen is shown, though it does have both adapters listed. The settings for the new one are... odd:
I have also tried downloading the latest drivers for the card from nVidia, with no change. Also, with two monitors attached; I wondered if the new card was not installing properly because it was trying to get details about the monitor, and there was no monitor attached. Still no luck. In fact I now cannot get anything on the monitor attached to the new graphics card, just a message saaying "Input Signal Out of Range Please select 1280x1024 60 Hz for best performance". Before I had an option in the system tray (for the on-board graphics) that would let me change resolutin and refresh, but that is no longer there, and I have installed and uninstalled so many times, I cannot remember how I got it.
I am disabling AV when installing, by the way.