Until recently, my PC5750 card has worked fine. Now, it wants to activate the card before connecting. It begins to activate and says completed, but the VZAccess software still reads the card is not activated. Try to activate again and same go around. The software reads four green bars signal and acts like the card is working. I have tried downloading the latest version VZAccess software from the Verizon site and installing on 2 laptops - both have same problem. Is the card defective? Or something wrong with the account? Help!