Comment 2 for bug 1247661

Just noticed that this affects Ubuntu too.

Open OpenLP and send an item live.
Minimise the operators screen now click the OpenLP icon in the Unity Launcer and the operators gui does not maximise
Also if you minimise the operators gui and switch to annother application you cannot alt tab back.

Hoewver, hover over the OpenLP icon in the launcher and use the scroll wheel to bring the GUI back (this is usually used to show multiple instances od the same application)
You can also right click and select "OpenLP 2.0"

Finally if you hold down alt and repeatedly press tab untill the OpenLP icon is selected and then wait whils holding alt both windows appear and you can then use tab to swithch to the operators gui