I am using vb 1.6 amd64 version on a WindowsXP 64bit host system, with a guest system of ubuntu 8.04.
The problem is, the virtual machine will often be stuck at "stopping" state when I shut down Linux, and will never resume. And when a vm is stuck, I cannot start another guest system, and the virtualbox process on host system cannot be killed, neither can host shut down or restart normally. I have to reset my host machine every time this happens.
Anyone has any idea how to fix this? Thanks a lot!