Have a new TIVO Premiere Series 4, model 750500. When going through the initial Guide Setup, Getting Setup Info , the screen shows that the info could not be verified on the last line and to contact TIVO. The unit was ethernet connected. This was repeated many times before I called support and was told that the unit needs to be activated before anything more can be done. No info is asked on cable provider, no channel guide setup, nothing further until the unit is activated. Is this now standard? How do I know whether the unit really works before I spend more time and money installing the cablecard and activation? Anyone else have this problem?