TLDR: It's a good chance the problem is with your memory.
My similar story:
I just put together a new computer with 2x8gb Crucial Ballistics 1600. In the mobo I forced a profile to match the memory specs (8-8-8-24 @ 1600mhz).
My processor is 4130T (HD4400 graphics)... every time I installed Intel VGA drivers (either from CD, downloaded from mobo mfgr, or downloaded from intel site) my computer would start crashing randomly. Usually during 3D stuff, but occasionally on other things too. Removing the intel drivers helped but it will still occasionally crash randomly.
Lots of other random weirdness started happening: windows complaining that signed drivers were unsigned, claiming updates were corrupted, etc. Basically all signs pointed to some kind of hardware issue because it was all too random to be software, especially on a brand new install that I kept restoring from image.
I ran memtest86 for 8 hours... 5 passes & 0 errors found. This made me think the memory must be fine. I started looking at other options: HD, Power supply, various BIOS settings. I too was on the verge of RMAing the mobo and getting a different brand.
Finally I set the mobo to "auto" the memory, it lowered the timings to 9-9-9-?? at 1333mhz. Totally stable since then. I believe the crashes happened *more often* in the intel drivers because they are using shared (corrupted) memory, and/or your system is more stressed when the VGA is doing more work.
Moral of the story? Check your Crucial Ballistix memory... lower the timings and/or switch the sticks etc. because even with memtest86 saying it's ok, it might not be.