I have GTX980M G-Sync, with driver v.376.33 and 1536 CUDA cores (no idea what CUDA version). My preview screen is fine.

BINGO!

Thank you Skywatcher for your speedy response and yes, perplexing indeed. I too get that thin pixel width strip running along my left edge. This may mean that the updating of the Driver, which is the advise from all, is crucially failing the Vegas Pro family who use the NVIDIA GTX5xx Series.

Skywatcher, would it be possible for you to post here a Screengrab of the resultant Blacked-out Preview screen? It would be good for the likes of MAGIX, NVIDIA, NeatVideo and the engineers engaged in finding a solution, PDQ!

What do you think is our best way forward?

I have GTX980M G-Sync, with driver v.376.33 and 1536 CUDA cores (no idea what CUDA version). My preview screen is fine.

RP, if you're interested in discovering this then open the NVIDIA Control Panel and in the lower left there is the System Specifactions Icon. Click on that you'll get a 2-tab window. You can discover the CUDA Version in there. When you've done that please report back here.

TIA!

No issues here, windows 10 pro N 64 bit, Vegas 14 (fully updated), preview is fine. GTX titan-x, driver version 378.49,  nvcuda.dll 8.0.0 driver, file version: 6.14.13.7849 

(3072 cuda cores)

Thanks Bitman for the information about the GTXTitan-x. All this is being read by the engineers to get a solution for the GTX5xx Series, and get NVIDIA, NeatVideo and MAGIX focussed.

Well, call me Sherlock!

Reading further and watching a YT on CUDA enabling, by one of our MSVP chums :

it is starting to appear that the NVIDIA updates for CUDA aren't connecting during installation to Vegas and that this chap has found it necessary to use the CUDA Toolkit ass well.

On the official NVIDIA site there is a page devoted to Legacy CUDA Toolkits : https://developer.nvidia.com/cuda-toolkit-archive

And there amongst the CUDA Toolkit options is CUDA6.5 - all the way to CUDA8. However, NVIDIA deems it necessary to ringfence off other GTXs for usage of CUDA8 . My big assumption is that the newer/higher rated cards require other CUDA8 installations.

What do you think folks? Firstly our chums here that do have higher GTX are getting the correct CUDA8 and secondly, no matter how hard us GTX5XX series carders Track down the NVIDIA Driver we will remained hobbled and stipend from the get go!?

MAGIX, Gary NeatVideo please comment.

And yet more from our Forum: https://www.vegascreativesoftware.info/us/forum/gpu-acceleration-fix--98998/

RP, if you're interested in discovering this then open the NVIDIA Control Panel and in the lower left there is the System Specifactions Icon. Click on that you'll get a 2-tab window. You can discover the CUDA Version in there. When you've done that please report back here.

OK, this is what it says:

Same here

GTX580 all working fine with 376.33. I will try the latest driver and report back.

this chap has found it necessary to use the CUDA Toolkit ass well.

While I do have the CUDA Toolkit on my system, I seriously doubt it is required. I only happen to have it because I develop software. The Toolkit is for programmers who need/want to know how to include CUDA capabilities in their software. But everything the end users need for CUDA is installed with the regular NVIDIA drivers.

Anyway, the chap himself has posted a later video, in which he takes it all back.

RP, thank you. This shows it's working beyond. Good.

Old Smoke, that's even better news For the GTX5xx series! I'll try and dig 376.33 out of the pile. And you have it engaged under Preferences too?

I have a GTX560ti ... I'm running driver 372.90 .. all is well .. why would I want to update the driver?

It's looking like something happened from 378 onwards for our chum up there?

Grazie, yes I have the GTX enabled for preview and it works. I will test the latest driver too later today.

STOP! NOW!

Success . . . . . 372.90 is working:

1/- I have CUDA8 installed

2/- Previews

3/- NeatVideo is making use of it and has performed the Performance thing:

I have NO idea why this was not working yesterday. I downloaded the same except that there is a switch on the Driver Downloads for either "All" or "Recommended/Certified". I'm almost certain, wishing to catch ALL that would help me and not have the BETA, I chose ALL. But now I can see that that is a misdirection for me. I could have actually got hold of a BETA and worse a non-certified one.

Sorry for wasting people's time here.

Morning/afternoon Grazie,

Just getting back to the forum. I'm happy its working for you! I guess the answer is rolling back my driver to version 372.90. . . .

Skywatcher

Hiyah SW! 8:50pm here in London.

Please make sure you read my sorry story and make sure you download the Recommended/Certified file.

Yeah my friend I know we are a world away (California Dreaming).

So . . . I installed CUDA Toolkit 8 (large file 1.2gb) and that fixed the preview problem. I'm still on version 378.49 and all is well. I didn't even know Nvidia had CUDA Toolkits for this. Oh well . . .

Thanks Grazie for getting the ball rolling and following up. This issue should be labeled resolved.

Skywatcher

It appears that the updated Driver for my GTX560ti, although meant for my GPU, brings with it CUDA8. In these circumstances my Preview Screens remain Black.

Has anybody been successful? And if so, what NVIDIA Driver are you using?

I also have the GTX560ti with driver 378.49 and am having the same problem with Vegas Movie Studio Platinum Suite 14. I haven't yet checked out previous drivers and rolled back.

I also have the GTX560ti with driver 378.49 and am having the same problem with Vegas Movie Studio Platinum Suite 14. I haven't yet checked out previous drivers and rolled back.

376.33 worked for Aiki.

I also have the GTX560ti with driver 378.49 and am having the same problem with Vegas Movie Studio Platinum Suite 14. I haven't yet checked out previous drivers and rolled back.

376.33 worked for Aiki.

I had trouble searching the Nvidia site, but I found a 344.11 installer in my archives, installed it, and it's working now!

I had trouble searching the Nvidia site, but I found a 344.11 installer in my archives, installed it, and it's working now!

On their driver download web page, click Beta and Older Drivers. Then fill out the form asking you what GPU you have, and it will show you a number of options, including the 376.33 driver.