Unable to change video settings

I just tried the game for the first time. I went to settings to change the video resolution for smoother performance. I tried a few configurations but then got stuck on one which is quite unsuitable and am unable to change it back as it no longer allows me to click on the settings button, only “back” and “quit”. When I mouse over the settings button, it doesn’t light up and clicking has no effect

Win10 Pro

Intel Core2 Quad CPU Q8200 @ 2.33GHz
4GB ram
NVIDIA GeForce GT 710

hopefully I’ve posted this in the right section

Hi! Thanks for the report, we know this issue and it will be fixed soon.
For now you can use “Tab” button to switch to the “Save” button and activate it with “Enter”.
Sorry for inconvenience.