The background color of your picture should not be changing if your image environment, video monitor, etc. are the same for both systems. Do you see the problem if you use the camera from the first machine on the target machine? What if you use swap out the PCI-1407s between the two systems? Also, are you running the same version of the NI-IMAQ driver on both machines?
Best regards, Dawna P. Applications Engineer National Instruments
