Sophos Causes PC to Hang With Zen 6.5 Agent installed, you authenticate
via the CTRL-ALT-DEL and then it just takes you to a blue screen, it
works fine with Zen 4.0.l agent but once you put the 6.5 agent on then it
just hangs on login for both admin accounts and user accounts.

There is nothign in the event viewer to point to any problem but if you
dont have sophos on the box the Zen 6.5 agent works fine