Resolution dropped - and no option to increase

I have a PC with an NVIDIA GTX 560 Ti graphics card, and use a Samsung S23C650 monitor .
This is normally set to resolution of 1920 x 1080

Today I run IOBIT driver update - and it updated some drivers ... and now my screen resolution is way off ... set to 1024 x 768.
If I go to settings it does not show anything higher than 1024 x 768 and if I go to adapter (NVIDIA GTX 560 Ti) it only lists modes up to 1024 x 768.
Looks like this driver update has messed up my display adapter ..... anybody know how to recover ?

NVIDIA adapter shows driver 21.21.13.7633

You need to rollback the driver to the previous version. Here is a guide to show you how.

Roll Back Driver to Previous Version in Windows 10

Re-download the driver and remove iobit driver update

OK - tried
Rolled back - reboot, still the same.
Run Windows update driver, it updated but after reboot still the same.

I did go to nVidia site .. every time I tried to check what driver I needed it failed - it needs Java .. and my browsers do not use Jave due to security risk.
I did manually install Java on new browser just to do this ... and even though Java installed it still failed asking for Java.
I have asked on nVidia forum what correct driver is ... no answer yet.

Is the 376.33 the correct driver ?
W10 installed 21.21.13.7633 as the latest driver.
If it is I will happily install.
Just wanted to check as numberring seems so different.

Ah ... didn't realise it numbered that way.
Thanks.