I recently bought a mini dp to hdmi adaptor and have tried to connect my Bush 24" widescreen LCD tv to my iMac (21.5-inch, Mid 2011). It isn't detecting any input wether I put it into my tv's 1st or 2nd hdmi port. This is my first attempt with dual screens, so feel free to talk in lay terms Any help would be much appreciated. Thank you Connar Edit: the little display icon has appeared in the top right of my screen, giving me the option to change resolution (including stretched) but only one display shows in the drop down menu (imac). So it know another monitor is connected but isn't sending anything to it.