Hey Everyone, I ran redsn0w 0.9.7 B6 to get an untethered jailbreak for 4.2.1 on my iPhone 4, other than a few quirks, my MMS will not go through. I've tried in a bunch of different locations and signal strengths and no go. I reset my settings, powered on and off and still nothing. I'm on AT&T so any word of advice from anyone? I'm trying my hardest not to restore because I'd have to ask my ex-GF to borrow her mac to Jailbreak so please help me not have to go to her.... Thanks!