Hey I bought this set a while back and love playing my 360 on it, due to the refresh rate. There is one issue that no one can seem to resolve for me, maybe you guys have some input? I have an issue with the EDID, I believe, and Philips nor Sapphire can help me out. When I use HDMI out on the 4850 the signal drops when Windows loads, IE it makes it through POST w/ output to the TV then says "No Signal" at the Windows Login screen. I have tried to force the settings through ATI CCC with no password to bypass Login, next step is to check an application that has been recommended by the name of PowerStrip. Phillips sent a service person over and they replaced the board inside and still the same issue persists. I do not have this issue on my 32" Vizio with the same computer. It works beautifully, so I am under the assumption that this "EDID" handshake is on the TV sets end. Phillips has stopped taking my phone calls and even resorted to telling me they have closed the case due to it being a PC issue. They gave me an address to corporate and told me to write a letter if I wanted, but there is no guarantee I will get a response.