just wanted to add to this thread that about 4 weeks ago all the sudden my phone wouldnt send/recieve mms for about 5 hours. i figured i would wait it out...no error codes or anything. later on in the day i gave it a shot and everything was fine.
it hasnt happened again so im going to cross my fingers lol. my friends 3vo does this all the time, at least one day out of the month w/ no error codes. seems to just fix itself.