I am having the following trouble with this monitor. When I turn the monitor off and the laptop is running, I cannot turn the monitor back on, it freezes, I need to unplug and replug the power to get it back on When starting the laptop with the lid closed, it does not pickup the monitor, I need to unplug and replug the cable from the mini display port until it works, usually the monitor freezes at lease once while doing this Sometimes the Apple Light on the back of the monitor screen/lid stays on when I have the monitor plugged in and the laptop lid closed, I am not sure what exactly causes this as it only happens sometimes I am running a cable that goes from the Mini-Display/Thunderbolt output on the laptop to the Display Port input on the monitor. As a workaround I have a 10 minute Monitor Sleep timer to turn the monitor off, as I cannot use the power button without freezing the monitor. Thanks for your help! Nathan.