Hi All, Im sure this questions been asked but couldnt find any recent info about it.. I want to use my 27inch IMAC that I just purchased as a display for my Dell Laptop when i work from home. The older model had a "display mode" IM not sure if the new ones still do ? I tried a TB to VGA connecter but both the IMAC and the PC screen just flash when connected. Its like they almost see each other ... Is there any special cable or part that I can purchase to make this happen ? I need my dell screen to display on the IMAC for work. Any help would be great since I really need this to work. Thanks so much.