I've got an up-to-date Snow Leopard laptop (a macbook pro). Every time I try to start virtualbox, it crashes before starting. Trying to run from the command line gives the error message:
tow$ VirtualBox
Bus error
This happens both with 4.1.2 and 4.0.12
I've opened a bug at http://www.virtualbox.org/ticket/9504 - has anyone else had this problem?