Hi all, first off thanks for the suggestions so far. Here's the update, I have been able to boot in 15.3, but I get the same black screen after USB boot when trying to upgrade to 16.2. I believe I'm having the same error as Mamadian Live USB Install - Black Screen on 4K display Fix - #7 by Mamadiam but I'm not able to edit the downloaded .iso file as I constantly get read only errors when trying to adjust the 'set gfxmode=auto ' into set gfxmode=800×600 in /boot/grup/grup.cfg
I've tried what's suggested by Mamadian, but I constantly come up with the .iso being read-only. Does anyone have a sure fire way to make the .iso I'm getting directly from Zorin to tweak the .cfg file to the updated setting?