September 17, 2014, 06:15:36 am
Thanks for the information. Certainly a Titan works really well with Lumion and creates fast renders.
AFAIK, you should see a step 2 in the NVIDIA Control Panel that lets you select the preferred graphics card (similar to the image shown in this topic: this topic
Your Control Panel does not show that, and that may indicate a problem with installed drivers.
I note that the DXDiag report shows an old GTX 460 driver, and wondering if you will need to try uninstalling and then reinstalling drivers to see if the Control Panel shows the selection.
It may also require complete removal of drivers by reinstalling Windows, but thats a last resort sort of thing.
Users with 2 cards have generally been also running 2 monitors, some of this information in this topic may help: Two monitors (and multi-cards)
Would you please add your Lumion Competition license key to your forum Account (click here
, scroll to the bottom and enter your license number).