Disabling multi monitor mode when second screen is disconnected

[Coomber]

I currently have a 24" screen as my main monitor (via DVI) and a 32" TV (via HDMI) which I would like to use as a secondary monitor on occasion. Everything is working correctly using Catalyst Control Centre however I have one question.

The computer will try to use the TV as a second screen even when the TV is switched off or using another source. I would like it so the computer will only try to use the TV when the TV is A) switched on and B) on the right source. I find it rather annoying when I keep moving the mouse off the screen trying to grab at things on the right of the screen when the TV isn't in use. Otherwise I keep having to enable/disable it manually.

Is this possible?

Thank you in advance.

 

[Coomber]

I seem to be a bit of a stuck record on this one but have you tried the Winkey and P shortcut that allows you to turn on and off secondary displays?
That way, you keep it off and just hold the winkey and press P to turn on the second display.

This would be more convenient than doing it in CCC but sadly it tries to use the TV as the main screen every time I tell it to use one screen only. It will always identify the TV as monitor "1" no matter where I position them.