When I go to work each day, I tend to log off Windows before leaving. Since DisplayFusion 4, I've had issues with DF not starting up again when I log in upon my return. Opening task manager shows one or two instances of DisplayFusionAppHook.exe, and running DF again results in it showing up in the process list but immediately exiting.

This is on Windows 7 x64

Log file attached.

I have check for latest beta version enabled so I'm currently running 4.1.0 Beta 13, which is the most recent according to your link. Unfortunately Beta 12 didn't improve things any.

In case it's relevant, every single logoff is delayed by Steam holding things up for an insane amount of time (up to a couple of minutes) with that waiting for logoff screen.