I installed Zorin 16 Pro using the USB and I don't have it plugged in. However, I discovered that, when the screen goes blank to the point I can't recover it, booting with the USB in restores my screen. It doesn't boot from it, though. If you don't understand, imagine what it's like for me... I'm so grateful for this help...
But I am using 470 driver for this card in Mint.
It is old but not that super old.
I know, this whole situation is confusing as heck to all of us, were grasping at string at this point. I realize FrenchPress is having no issues, but I am sure she has other hardware that is different, different mobo, different BIOS for example.
Praveen may be running the same kernel as all of us, cause its Zorin OS. However, he is running different hardware, different mobo, different BIOS. And for all we know, that alone could be the issue.
But the last thing I want to do is break this guys machine, so, I won't be recommending BIOS updates at this time, until all other options have been fully exhausted.
I cannot think of anything that could cause this result.
If you are using Gigabyte m/b with dual BIOS chips, BIOS update is risk free (which I have).
Something tells me it will be faster OP reinstall the whole system rather than trying to fix it.
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Ohhhhh gooooody! I had no idea!
Truth is, I haven't been a big fan of Gigabyte these days, but thats a different topic discussion.
Point is, if a BIOS update is indeed risk free for him, then at this point in time, I HIGHLY recommend it!
There is no 380 driver, but there is a 390, so I tried it... no different!
I would not be surprised. I think it is faster reinstall than fix it. Do you have any data on it you need to keep?
It's OK. I backed everything up when I changed OS, and I haven't reinstated anything yet.
Do we need a new thread for that? 
I feel so bad that we can't help fix this for Phil. But alas, I feel, FrenchPress might be right, and a re-install might be required. Maybe something went bad in the initial install, I really don't know.
Normally when people contact us for support on Nvidia related GPU issues, a fix is simply applied by installing the latest Nvidia driver. We don't usually run into extensive issues like this. Gosh I am so sorry Praveen.
I know computer problems all too well, I know the feeling of wanting to pull your hair out. Just know, we are here for you, were not just support forum, were a friendly community of wonderful people. Just know, your not alone.
phil1955
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It is good to know 
make sure you read the section "Before you install".
I really appreciate the help. Any ideas what nest?
Should I go ahead and reinstall? If I do it will be tomorrow before I report back as I'm running out of time.
Surely you can.
I can install Zorin in less than 10 min.
Much faster than Windows 10.
Just make sure that the secureboot is disabled in BIOS.
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FrenchPress, Aravisian just pointed out an error on my part, addressing a person by the wrong name.
Reason? StarTreker still a bit sleepy, not fully awake
Resolution: StarTreker requires lots of coffee.
Apologies Phil
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No problem. I'll let you know how I get on tomorrow.
Cheers, and thanks!
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And you said just yesterday that is the worst thing that can happen in formal letter 
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