Since the update, I've had the graphics freeze up on me twice at the point in the game where I've just finished a research goal, and was going to pick a new tech to research.  You can hear the mouseovers etc. as you move the mouse around, and click blindly on stuff, but the graphics display is just frozen.

The only way I can get out is by hitting the Windows key to make the taskbar visible and closing the game that way, then coming back and loading the last auto-save. Other than that so far I'm not seeing to much in the line of errors yet, but I will keep an eye out for them and let you know.  It looks gorgeous though, I can't wait until more of it gets enabled as the beta progresses