Hello, first of all thank you for reading me and forgive my bad English! I am very happy with elementary os but I have a problem which prevents me from using it, every time I open an application or I get some notification on the screen I see green stripes and until I move the mouse very aggressively they do not remove it! I hope you can help me because I like elementary, I use two screens, the main one connected by HDMI which is the one that uses the AMD RX 470 graphic and the second screen is connected by VGA to the internal graphic of the motherboard, thank you and forgive my bad english Specifications: Motherboard: GIGABYTE B250M CPU: I5-7600 GPU: AMD RX 470 RAM: 16 GB SSD 120 GB HDD SECONDARY 2 TB