I ordered an iTunes card this morning to be digitally delivered. I received it via email and can see the email and it's contents, including the code to use the card, on my phone, but when I look at the email on my iPad 2, the email is blank. In the preview on the left, it says, "this message has no content.". I have checked email settings but don't see anything there that should cause the issue. Any ideas? Thanks in advance.