I am a kind of "set it/forget it" guy, but now it seems I have to know what's happening.
Since Tuesday, my Dynex HDTV had been acting funny with my 4250HD Terminal. I've had HD since Dec 30, and no problems.
Now I'm getting occasional flickering--like the channel goes out and comes back quickly, with a popping sound and the signal being shown in the top right. Got me scared that it was damaging my tv.
Last night it went full blown, knocking out the channel and giving me the blue screen, and a "no input" message.
I changed from the hdmi side connection to the back, and tried Auto DVI/HDMI (was previously Upconvert 1). I seemed to work, but I'm not entirely sure what the problem was to being with.
BTW, my HD channels would be 1080i, and SD would be 480p. I never see the tv go to 720p for some reason. Now I read 57s comment about enabling 720p. Never knew that was possible, because the wizard only asks to choose one signal. I'm sure I missed something, so I will check the links posted.