Image undocked in Develop module

[BrainB885]

I'm a new user, strictly beginner. I'm assuming my terrible keyboard skills have seen me trigger a hotkey to undock the image from the Loupe view in the Develop module.
The image displays in the docked window, but there is also an undocked copy sitting on the screen i can't get rid of. I'm sure half my problem is not being used to the terminology for different window types so I can't search the right fix.

Screenshot for example - it is the smaller copy in the top right I want to close.

Thanks in advance for your help.

[Ian Lyons]

You have enabled the secondary window option. To disable it, click on button labellled '2' just above the filmstrip on left side. On your screenshot it located slightly off centre above first image on the filmstrip.

[BrainB885]

Thanks, that didn't work but I clicked the GridView button next to it then selected Loupe from the "1" button and the window is gone. You at least got me in the right vicinity so thank you! 🙂

[BrainB885 · Accepted solution]

Turned out to be a problem with the GeForce drivers for my RTX 2070 Super video card.

Disbaled the Use Graphic Process setting and it went back to normal.