one of my older DTiVo units kicked the bucket and D* is sending me a replacement SDDVR40 (reciever only, no new access card)... is there ANY way i can transfer my existing access card to the new reciever without calling directv? i've heard a few people say that they called D* for various reasons and the CSR revoked their distant nets.. distant HD nets are my only source for HD so i don't want to chance loosing them.