Safe mode? If so, watch the start up screen. You'll find you have a choice to use normal mode.
I'm not a techno nerd, but I know what the safe mode is.
No, not safe mode. When I originally installed this monitor, it had the widescreen stretchy look. I just can’t remember how the heck I fixed it to make it look normal.
I do remember the fix was a fluke. I had no idea what I was doing back then either, lol.