I have a message in my inbox from a friend of mine. It has an icon to the left of it that looks like the yellow outline of a closed envelope with a purple reel of film on the bottom right of the envelope and a light blue arrow on the upper right corner of the envelope pointing diagonally down to the right.
Below this icon is are the words "New Message" and the message size is "[103k]"
Below is the best I could do at a screen shot using my cheapo digital camera.

To me this appears to be a multimedia message (MMS) probably containing a video file of some sort. The arrow I am guessing means the content has yet to be downloaded. Here is the problem. I have had this message in my inbox for over a week. In that weeks time I have recieved countless other messages many of which from this same contact and many of which were MMS, though none of which were videos.
I cannot open this particular message. When I tap on the message the phone responds by highlighting the message briefly as the phone does its little vibrate thing but I am never actually taken to the message. I remain on the inbox screen as if I had not just tapped the message in question. Becoming fed up with my inability to view this message I decided just to delete the darn thing. However after attempting to do so this too appears to be impossible. After telling me the message is being deleted I am again left at the Inbox screen with the message still there.
So my question is three fold.
1) What does the icon mean?
2) Is the message on my phone and if so can I move it to my PC where it can be read?
3) If it is in fact a yet to be downloaded video (or other content) How do I delete it from my phone so that I once again have an empty inbox?
Any help you can give me would be very much appreciated.
Thanks in advance.
-LOTYBOY