So when I plug in the mini DVI display-port to my Macbook, my external monitor, which is my main screen, shows all the desktop icons properly. When I unplug the minidisplay port, and just use my Macbook solo. My desktop icons are all messed up, kinda like stacked on top of each other. Is there anyway to prevent this? Not only that, my trackpad becomes unable to click on the desktop sometimes too weird. Am I doing something wrong? When I don't want to use the external monitor, I just unplug the mini display-port right? help appreciated!