Mac OS X 10.6.8 is incompatible with Hands Off! v1.3, a third-party privacy application, causing kernel panics at startup. Metakine has released a v1.3.1 update to address this problem… however if must be updated prior to updating to Mac OS X 10.6.8. The workaround for those who updated to 10.6.8 prior to updating Hands Off! is to do a Safe Boot, then install the update.