I am not an expert on HDCP subject. But I am strongly believe the HDMI issue related with Dish box is somewhat an issue of handshake with certain HDMI chips (or coding) used in certain TVs. Looks like the port has been "shutoff" due to "violation" of content protection detected with HDCP mechnisim. That would explain why it always works at begining. It has to accumulate certain amount of "violation" before the port is disabled. Enabling port won't be easy, unless going through some serious ROM reflesh processes. I doubt any general software update will re-enable the HDMI port, if that would be the case, the whole HDCP mechnisim would be worthless. Just my two cents. So far, I have been lucky enough that have no HDMI issues with my "C" & "D" version of boxes.