I have the 27" Samsung Syncmaster S27B550 and I have been trying to use my Xbox 360 with it and run in 1080p. However, I am not able to do this. I am connecting it with an HDMI cord so I know all of the works and I know this monitor is supposed to support 1080p. If you are familiar with the display settings on the xbox you can go to settings, console settings, then display and it gives you options of what you can run. The best thing I can click is 1080i, 1080p is grayed out so i cannot even test it. Any help is appreciated.