Hey Rory!! 
Client must have had more than "a few beers" before he had the brilliant idea of resetting his admin password!  So here I am at your mercy begging for the software to reset password.  (Guest account still works and at least system is still monitoring, but definitely need to get admin account up again) 
I really appreciate the time you and the other CCTV vets put into this forum.  You need to issue diplomas! Ha! 
Sober, but still stuck 
Mav