What was different in the clone system then the other one if color works on clone and drivers are the same?
Nothing is different other than the clone was from a few days earlier when it worked.
I can say this though. The black & White happening on the 2nd DVI port happened when I disabled Eyefinity group. and the screen refreshed and I then had extended monitors. that is the exact point when the B&W issue came about.
the flickering I have discovered only happens when CCC Overdrive is Enabled . I disabled Overdrive and the flickering stops while computer is in use. but I still get it right before shutdown and right after start up . and anytime I open CCC and scroll through settings
So the B&W Issue was sometime right after disabled Eyefinity .