diepnt Posted September 30, 2016 Share Posted September 30, 2016 Hi all, I have installed successfully Seirra for my PC. MSI H110i i3-6100. All things work fine except at the top left on the finder ( File, edit...) there are some black steaks always flash. they also cover the text ( File, edit..). i tried to capture the picture about this issue but when open the picture , it is normal. not show the black steaks. Before, I installed EL Capitan and nothing issue. any suggestion ? Link to comment Share on other sites More sharing options...
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