Some notes: =========== 1. Turn off virtual memory in MacOS. Instead of using VM, increase the amount of memory Mac-on-Linux uses as RAM (in the /etc/molrc file). It is possible (and probably wise) to assign more memory than is physically present. 2. Make sure the sound volume is set to zero in MacOS and check any mute boxes if you oldworld boot an old versions of MacOS (pre 8.6).