Everytime i send a MMS, i get a red X and it doesnt send. I have re-registered the host routing table, resent the service book and left the battery out for a full 2 minutes. Nothing helped. I have a 8310 locked to ATT with onlimited BB Connect, and unlimited SMS and MMS. Any ideas?
***EDIT****
I also can still send and recieve PIN messages, SMS messages, email is still pushed properly, and phone calls in and out are all working properly.