When posting try to post professionally. Pointing a finger and saying it's the fault of the user without sufficient facts is not a good thing. The affected posts were edited.
 
The newer drivers don't work very well when folding. I have already talked with NVIDIA and a driver report has already been made.Hopefully this can be resolved soon.
 
I had to roll back to an earlier driver myself.

373.06 is what I am using with my 980Ti's, and they work great. But I also fold when not gaming and the latest are not good for folding.

The OPs Question was "Which NVIDIA Driver is best to use with SLI?"
My answer was based on that question.
 
For me Driver 373.06 work best for my Computer Playing Gears Of War 4.
This was on a 4-Way GTX 980 Rig and the other was a 2-Way SLI Rig Running 2 GTX Titans Graphics Cards.
Under Steam the Following Games played without any Issues on my Titan Rig above.
 
 
Driver 375.70 cause me some issues in some of the games when I had SLI Enabled
With SLI Enabled on my 2-Way SLI GTX 980 Hybrid Rig I started to have some Office 2013 issues in Excel 2013 Charting.
Driver 375.57 Crashed as soon as I enabled SLI on both my Titan and 980 Rigs.
Drivers 375.57 and 375.70 then started to show problems with Folding Projects Tasks to Fail.
Drivers 375.70 on my AW 15 caused Quicken 2017 to crash. 
I am running 375.57 on my GTX 970m Single Graphics Card AW 15 Laptop. But I need to go back to Driver 368.81 for Quicken.
 
The Driver I used Prior was 368.81 on all my Rigs, that is with NVIDIA Graphics Cards installed.
 
 Exnetic I am not sure why you are saying this?
"The driver is not the problem in this one. The person behind the screen is."
 If I have upset you some how I do then apologies and Please forgive me.
I have never worked with you before this Thread so I am not really even sure what it is I even did to you.

Exnetic

bcavnaugh

Exnetic
LOL 375.70 is the latest use that one.

The Latest is not always the best.

The driver is not the problem in this one.

Exnetic  What are the two Graphics Cards that you are Running in SLI and Under what OS?

rla1999  I do apologies for what has happened to your Thread.

bcavnaugh
rla1999  I do apologies for what has happened to your Thread.

 
It's all good.  I got the answer I needed.   Most people agree with the 373.06 so I installed it.    I just need to find the time to play now
 

Thank you all for your great comments. 

 2 x GTX 980 SC in SLI. 375.70 in Windows 10 64 bit, Build 14931. Works just fine for me. No issues.

I'm using 373.06 with Windows 7. No issues at all.

DKSang
 2 x GTX 980 SC in SLI. 375.70 in Windows 10 64 bit, Build 14931. Works just fine for me. No issues.

Cool. What games do you typically Play?