VirtualBox on Vista64 wont start after upgrade.

[xToeCutter]

I upgraded to 2.1.0. Now Vbox will not start. I googled the error and searched here, but no real answers. This is the last part of the log. ( I did find this http://www.virtualbox.org/ticket/2863 )

00:00:02.097 ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={e3c6d4a1-a935-47ca-b16d-f9e9c496e53e} aComponent={Console} aText={Unknown error creating VM (VERR_ACCESS_DENIED)} aWarning=false, preserve=false
00:00:02.101 Power up failed (vrc=VERR_ACCESS_DENIED, rc=E_FAIL (0X80004005))