Graphics highly unstable

This would be a very good game if the graphics were stable; with annoying consistency, after about 30-40 minutes a change in frame results in complete distortion of the picture, and I’ve tried various in-game fixes. Always requires rebooting the game, which often means progress to the point of ‘crash’ hasn’t been saved. Using an iMac 21.5 inch late 2012, 2.7 GHZ intel core i5; memory 8 GB 1600 MHZ DDR3; NVIDIA GeForce GT 640 M 512 MB.

HCEarwicker about Pillars of Eternity