Nvidia 331.40 breaks my OpenGL

Curious, anyone else running the new beta drivers (and/or possibly the previous WHQL's) run into it dropping OpenGL support? After installing these drivers on my GT60, I now get stuck with basic GDI OpenGL 1.1 rendering, which breaks all my OpenGL games and programs. Trying to figure out if there is a fix or if I just need to try older drivers?

I haven't tried an OpenGL program in a month or two, and have gone through a few driver updates in that time period, so not sure how far I'll need to go back.

As a side note, after completely removing the Nvidia drivers, OpenGL 4.2 support is then restored using the Intel HD4600 igp. With the Nvidia drivers installed, it doesn't matter which GPU or igpu I try to run the program with, they crash and give me OpenGL errors.

I'm using both GLview412 and GPU Caps Viewer to verify the current supported version of OpenGL on my system. Both list 1.1 when the Nvidia drivers are installed, and both list 4.2 with them removed. I've also run an sfc scan for errors as I was running out of ideas.

Thanks for the help or thoughts! I have very little experience with OpenGL other than it has always just worked.

 

please post here to keep all in one place http://forum.notebookreview.com/gam...-40-beta-drivers-released-bf4-beta-ready.html

 

Well see there's the rub my man, it seems the 327's cause the same problem... and I'm not even 100% sure it is the Nvidia drivers as they claim to include 4.4; could possibly be the Intel HD4600 drivers causing some odd conflict. Have slowly been trying older drivers to find a point when everything worked properly, just takes a while.

Hoping someone that's run into this before can help identify. I have no idea which driver would even control OpenGL in an Optimus setup... I just know that I get OpenGL 1.1 reported to my programs when they try to start.

Running Windows 8 64, 780m w/ svl7's vbios, and 4700MQ with HD4600 via Optimus.

Thanks for any tips.

EDIT: Well, determined the problem... it turns out it's related to the vBIOS for the 780m I was using from TechInferno. I will have to dig deeper when I have time as it was great for overclocking and performance, but it somehow was nuking OpenGL and wasn't allowing either card to be seen as a renderer. I just hadn't noticed because I hadn't used OpenGL since I flashed. Now running 331.40's without the issue.