Hello, i wanna ask my problem here.. my photoshop cannot run smoothly in sudden so I restart my mac.. unfortunately the error message about display driver problem popped up..I checked everywhere and then find the solution is to check the "use graphic processor" on preference > performance, but it grayed out, or not detected somehow.. now my photoshop always blinking whenever i click the artboard everywhere, including brush, how am i suppose to brushing when my photoshop Windows is blinking? anyone has same issues as mine? thank you and sorry if my english is bad.. have a good day