this is going to sound really stupid but I'm unable to disable my secondery monitor if i click display properties and then take the tick out of extend my windows desktop to this monitor the moment i click apply the PC re-boots where it then re-detects the monitor and once booted uses both monitors again. If I try and disable the monitor use the catalyst drivers the moment it tries to disable the monitor the computer re-boots and then restarts again. Its driving me insane I know that I could just unplug the monitor from the back of the PC but i don't want to do that ever time I need to disable the monitor any ideas would be really really helpful