If you're using a Razer mouse, don't upgrade :) Causes kernel panics and a reboot loop (remove RazerHid kext to fix and launchctl remove all com.razer stuff, th

If you're using a Razer mouse, don't upgrade :) Causes kernel panics and a reboot loop (remove RazerHid kext to fix and launchctl remove all com.razer stuff, then replace Synapse with something like SteerMouse). This was sure a weird one - everything works fine until you start moving a mouse at which point you catch a kernel panic.