Too dark in SafeZone

Ever since the update to version 6.0.1203 SafeZone has not been worked properly. The screen gets way to dark and still stays dark after I leave the zone on both monitors. I have uninstalled and reinstalled Avast Pro. Uninstalled Comodo firewall and EMET assuming it might be conflicting somewhere. Still no go. Any idea what might be causing the dark screen?

My OS is Windows 7 Pro 64.

I had a similar problem (though in my case exiting safezone restored bightness) that turned out to be to do with power management (which is logical for screen dimming I suppose).

Do you have a power management utility running at startup - for instance I had acer epower management. Disablng it was a workaround for the problem.