Vivaldi only visible in full screen mode
This problem appeared seemingly spontaneously today. I can alt-tab to vivaldi, or choose it from the toolbar, but the window is either invisible or infinitely small. Pressing F11 shows the browser as expected in fullscreen mode.
I tried to update to the latest version (1.5). Also tried quitting and restarting the program, and reboot the computer. Nothing helps so far.
Probably something like the window coordinates and size got corrupted.
Press alt-space, the menu for resizing the window should appear.
Thanks, that fixed it!