you can also get this red light when the stb locks up... at different times, I've seen a frozen picture (channel won't change), no picture and frozen info bar at bottom of screen (channel won't change), channel changing but not showing channel you changed to (you change to cinema 108 and Halmark is on,etc.) and under these or other conditions you have to reboot to get it to work (you can press the button next to the red light for about 4 seconds to do this) also as mentioned above no satellite signal will cause this (no reboot needed).To check for signal strength,use your remote, press the help button, with Getting Started highlighted press the info button, with Epg: 1.9.6D highlighted press the ok button, now press the down button (twice) you should be there. It may not work if you haven't been activated... my guess is no activation is your problem...