Symptoms:
- You forced the Mango updated on your Dell Venue Pro. (Here's a page with instructions if you haven't seen it yet: http://www.wpcentral.com/force-mango-update-early-through-zune-software)
 - Someone sends you a text message with an image.
 - When you click the "Get media content now" link, the message flickers but you don't see the image.
 
Problem:
The "MMS Proxy" setting s was erased from your phone when you applied the software update.
Solution:
- Dial the number ##634# to launch the diagnostics page.
 - Go to "MMS Settings"
 - After the Mango update, all of these fields were blank for me.
 - Click the "Restore system defaults" button.
 - You'll get a "Success, Setting is Done!" message.
 - You'll see your carrier's values in the text boxes.
 - Now go back to the messaging app and you should see the images when you click the "Get media content now" link.