new premier 4, getting HDMI not allowed screen

just upgraded from a TiVoHD to a premier 4. after intital setup, all worked fine til the next morning. when we turned the tv on, we saw a small graphic saying HDMI not allowed, and no live tv. some transferred shows which we moved over from the old HD played fine. I scratched my head, not understanding why the same HDMI connection worked fine with the HD, but not this new premier. I even tried by passing the HT rec'vr, connecting the premier directly to the tv itself. no change. i rebooted the premier, and it works fine, all channels on live tv. I checked the system info, and HDCP is enabled (cannot imagine that being sent disabled from TiVo) any ideas? spent an hour with tivo CS, and they suggested I swap my other premier to see if it happens with the other tivo. any ideas?:(