Fine - I restarted the computer and the problem with the wrong screen resolution has been solved. The correct resolution of 1920 x 1080 is now displayed. Thanks to everyone for their help!

Yes, there is a yellow exclamation mark under Display Adapter. It's listed as an NVIDIA GeForce GTX 650 Ti.

I left clicked on the item in Device Manager as advised, and the device status said:...

Thanks - where would I be able to find this?

Hi,

I've just updated my home PC to Windows 10 from Windows 8.1. I have an ASUS VS239 HR monitor with a true resolution of 1920 x 1080.

VS239HR | Monitors | ASUS Global

Unfortunately the...