Has anyone else had Dungeons of Dredmor trigger weird graphics freezes after playing on a 2011 MacBook Air? About once a week, after I've played for over an hour and exited the game normally, the OS X GUI starts freezing repeatedly, for example when pulling up the dock. Each freeze generates a message like this in the kernel log, but no other warning messages: Code: kernel: stampWait: Overflowed checking for stamp 0x0 on Main ring: called from kernel: timestamp = 0x88244d49 kernel: **** Debug info for apparent hang in Main graphics engine **** kernel: ring head = 0x41203238, wrap count = 0x209 kernel: ring tail = 0x00003238 ring control = 0x00003001 enabled, auto report disabled, not waiting, semaphore not waiting, length = 0x004 4KB pages kernel: timestamps = 0x88244d49 kernel: Semaphore register values: kernel: VRSYNC: (0x12044) = 0x88244d49 kernel: BRSYNC: (0x22040) = 0x0 kernel: RVSYNC: (0x 2040) = 0x0 kernel: BVSYNC: (0x22044) = 0x0 kernel: RBSYNC: (0x 2044) = 0x0 kernel: VBSYNC: (0x12040) = 0x0 kernel: kIPEHR: 0x78170003 kernel: kINSTDONE: 0xfffffffe kernel: kINSTDONE_1: 0xffffffff These freezes continue to occur regardless of what applications are running, until I reboot the system from scratch. I've had my computer (2011 13" MBA) in for service twice now, including swapping in a new "logic board", which would seem to rule out a problem with the graphics hardware or CPU. I suspect there's either something wrong with the SSD, the cooling system or some unholy combination of the two. One common theme for the crashes may be that I was playing on a deeper level, with a larger savegame to repeatedly write to disk.