Currently, Diablo 3 has issues running certain maps when the most recent drivers for the graphics cards have been updated (15.7 is the most recent I've used). A fix that has worked has been to roll back the driver to 13.2. However, periodically, my computer will automatically update the driver back to 15.7, rendering certain Diablo 3 areas unplayable. I have not found a way to stop the automatic update and am turning to here to seek help.
I am running
Windows 10 (64 bit)
AMD Radeon HD 6800 series card
I don't think the rest is relevant, but if if is,
8 GB RAM