Using 12.04 64 with Kernel 3.2.0-38. Using the latest VBox in the repos. I've had several occurances of virtualbox freezing then creating a race condition. After I finally kill virtualbox and try to shut down I can't. I end up in a TTY and can't even shutdown the system. I have to hold down the power button to shutdown, which I hate doing. Is this a known issue? CPU gets to temps of 96-99 Celsius. I like virtualbox but not enough to risk frying my computer. I'm done for a while with vbox. I see that it had problems with older kernels. Is there a fix for this?