VirtualBox stopped working with the update to 10.8.2

I just upgraded to 10.8.2 and VitualBox stopped working.

This is the error:

Failed to open a session for the virtual machine dev_env_oraxe.

VT-x is being used by another hypervisor. (VERR_VMX_IN_VMX_ROOT_MODE).

VirtualBox can't operate in VMX root mode. Please close all other virtualization programs. (VERR_VMX_IN_VMX_ROOT_MODE).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {db7ab4ca-2a3f-4183-9243-c1208da92392}

Does anyone have a clue?

I don't want to be forced to restore from backup.

Thanks

MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)

Posted on Sep 19, 2012 2:20 PM

VirtualBox stopped working with the update to 10.8.2