Ecards are multimedia and flash player based, a way of sending greeting cards online. Often, they are musical and make use of flash animation. Once you receive an e card and access it through the link provided in the email, you should normally be able to see the christmas cards properly.
The problem arises if your system does not meet the requirements of viewing the e card. For that, you should ensure that you have windows flash player downloaded. Also, the speed of your internet connection should be good otherwise it can take a lot of time for the card to download. Be patient and it should open in a few minutes. Once you have made sure that all these things needed to view your e card are in place, you can freely enjoy the magic of e cards.
Also send free e cards in response, just to reach out to someone who thought of you or someone you have thought of!