Whatever the original cause of this was, it seems to be fixed for me in the most recent build, 0.12-a0-2244-g0ff3a51. No more white boxes, no more slow response to commands. Kudos to whoever fixed that.

I have the same broken visuals as OP with current versions, both Stable and Dev builds. I'm on Windows 7. Previously played without issue on this system when it ran XP on my previous hard drive. The game is also taking around a second to process every command and using nearly 50% of my CPU. EDIT: Ju...

I seem to have interrupted Terence having a spot of tea with Crazy Yiuf .