@jiafoongwee Did not work for me. Like others have mentioned, I too use a Dock and multi screens when docked but then when I am away from the Dock all the other apps organize onto one screen and continue to work. In My case I was not docked when I opened opera and all was fine. I then started working on XL for a bit. the Screen saver did not kick in nor did I close the lid. When I went back to opera I can see it open (the Screen sort of does an animation of some sort) and I see it opening off to the left of the screen. Pressed Win + D to display the desktop. Right clicked on a blank space and hit display settings. I run my screen at 1920 X 1080 and 100 %.. Changed it to 125% and opera pops back into view. Went back and set it to 100 % and so far it works. Hoping if some one from the opera team is reading this maybe it might help them get this fixed. Just glad google opened this page when I did a search and save me some time. Created this account so I can contribute to this issue and help the community as I do Like the opera browser.