QuickMask and Layer Masks are very different things. They don't even share any drawing code.
And did you update the driver from NVidia's website (good), or Microsoft or a system builder (bad) ?
If CC 2014 is crashing, check the detailed crash report to find the name of the faulting module -- and most likely it's going to be the video card driver crashing.
You have a problem on your system that other users have not reported.
We need to figure out what is wrong on your system.