Hi. My sons 360 elite developed the red ring E74 error message problem (one red light flashing in bottom right hand corner with E74 error message on screen) I followed the steps suggested to repair this overheating problem: removed heatsinks, cleaned old paste away with alchohol, apply new thermal paste, retighten Xclamps. But the same problem persists. Any ideas what else a person can try? One note though, I can turn on the console with the HDMI cord unpluged and the red light does not come on, the green light just flashes. The instant I plug in the HDMI cord thats already pluged into the TV, the red light starts flashing with the error message. Not sure if this is significant. Any help would be appreciated.