I have a Direct tv hd h20 reciever. have started to have reception problems the last few days. All other tvs in the house operate fine. the problems have progressively gotten worse. a message started to display check or reinsert access card. I pulled the card today and it looked like it had gotten hot. plastic was really distorted in color. I have an old tivo box with the card still in it. i tried to go through and switch cards but the h20 box cant read card and wont let me proceed any farther. What else can i do? Can i even try and use the other card? any help is really appreciated.