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Music match processes running will cause it, that is the latest thing.

90% of the time is is a process running that is the culprit., something accessing the internet usually.

Use of the ALT-TAB has also been the cause.
 
I suspect somethings would trigger it no matter what video card you had while other things will triger it depending on which you have, so you might be fine with something running that another has a problem with and that person may be able to run what gives you trouble.
Then there is the driver version you are using and the refresh rate, adjusting that can sometimes solve the problem as well.
 
Paradox games like a lot of other games do not support ALT-Tabing.
 
You are a little unclear are you talking about altabbing or does your screen flicker and you are looking for help to stop it?
 
Different thing entirely
 
Great, glad to hear.
 
You just need to find out what is running in the background that is causing the flicker.
Music match is one that will always cause a problem, the new trillian version, virus protection ...
 
Just don't run apps in the background.