Graphics device is not available at this time error

I updated my gfx drivers for GTX980 Nvidia chip and have started to receive the below error. I have reinstalled the game and rebooted my machine several times as suggested by the error but it still keeps coming up. I’ve installed to 2 different hard drives and the error still persists. Not sure what else to do…

"Graphics device is not available at this time. Please try starting StarCraft II again, or restarting your machine. if the problem persists, for more information consult our support website at http://blizzard.com/support."

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Can you have a run through this guide please irrele. It should help.
https://support.blizzard.com/article/000018090

Hi,
I have the same issue, but none of the offered solutions here worked for me.
Please help

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Same issue, none of the solutions offered are relevant to my issue.

I could play the game normally on my old card, but not since I got the new one. It’s an NVidia, so it should be supported, and it’s newer and better than the previous one.

Problem is, I can run the game normally if I uninstall and reinstall it, but after I restart my PC, this problem shows up again. Is there a way to fix this? Preferrably without having to fix it every time I wish to launch the game.