did you uninstall AMD drivers first before replacing with nvidia card.
No. I thought I didst have to? I was told that I did not have to since the graphics card was intergrated and my system would automatically pick up the new graphics after I installed the drivers. I will give it a shot.
Physically remove the new card.
Plug the monitor into the integrated video output (i.e. go back to the original setup).
Remove AMD drivers.
Reboot and go into BIOS and select the dedicated graphics instead of the integrated one.There should be an option to disable the APU commpletely