@devisions . Hi and welcome to the Forum. Whilst I have Z15.3 Core, it is on a laptop and I don't have Nvidia graphics to contend with. The subject of Nvidia and Zorin (and therefore Ubuntu) crop up here from time to time, but from searching this Forum and the old Forum have found nothing previous ref your graphics card.
I did find this which may possibly give you a pointer:
https://zoringroup.com/forum/5/14536/
What are the symptoms when you try an install?
What installation method are you using? e.g. "Something else" method.
Also see @swarfendor437 's unofficial manual for Zorin 15 here:
Hi everyone,
This is the English version of the Unofficial Zorin 15 manual available to view, download - pdf = 67.1 Mb:
LibreOffice .odt file 30 Mb for those with low bandwidth:
Edit:
Just found this on here:
I have just installed Zorin os 15.2 core version on a hp pavilion dv6500 laptop. It has an nvidia geforce 8400gs video card and an amd turion64 X2 cpu. The only version of install that would work was the one with nvidia graphics included. However, after install I’m stuck at 1024x768 resolution and washed out colors, and trying to update drivers through the software update does nothing as no nvidia drivers are listed. The only drivers listed are for the wireless card. I know appropriate drivers e…