I have an LG 23EA63 screen I am using for my primary screen using an HDMI cable. I am also trying to run an extended screen on a viewsonic VX922 using the DVI connector. it worked for a few minutes and now it doesn't. rebooting won't even make it come back. it started happening after I upgraded to windows 10. I am using the latest drivers. I have an R7 370. if anyone has any tips for me to try I would appreciate it.