I updated my iPhone 4 to iOS 4.2.1 the other day, and now I'm having problems sending picture messages (that I've taken on my phone). I could do it perfectly fine before upgrading. To clarify, when I take a picture on my phone, and try to send it, the recipient does not receive it. I can recieve picture messages just fine. I can also send picture messages of others I have loaded on my phone (like wallpapers that are small and sized for iphone 4) . I think it has something to do with the pictures I take with my phone being too big (or are they aren't being properly formatted to be sent through mms), and the size is above the threshold by the carrier and they are not going through. Can anyone help?!?!?