Hey, I have a 5850 with the latest driver and a X1600 with its driver (WDDM) installed. Both work fine by themselves but when I'm I try them together the 5850 gets the error:
"Windows has stopped this device because it has reported problems. (Code 43)"
and the X1600 gets this error:
"This device cannot work properly until you restart your computer. (Code 14)
You need to restart your computer before the changes you made to this device will take effect.
Click Restart Computer to restart your computer."
Restarting does not fix the problem but from what I understand I should be able to run both of them at the same time. I have Windows 7 64 bit and both cards are PCI-E. I only want to run the X1600 to add an extra monitor.