Why is it that when viewing a message with an attachment (picture) in my inbox and using the "retrieve" function, the following message is displayed and any attempts at pressing the retrieve button return the error "1 of 1 messages could not be downloaded. Message delivery failed. Try again?" after it attempts to do a download (but fails every time). I don't have the 'internet' function subscribed to on this phone but shouldn't need to for this function (and didn't on previous phones). Can someone shed some light on this issue?