I'm having a couple issues with iMessage. The first being, for some reason it's taking up 7.7gigs on my phone right now. I was told it's because of sending/receiving pics and videos. Twice now I've gone through and deleted every text thread but when I restart my phone they all pop back up. How can I delete these permanently? I phoned Apple's tech support but they couldn't help. I was told to restore the phone then try deleting. Didn't help. This leads me to my next question...since the restore my iMessage doesn't sync up on my phone, mac and ipad anymore. How can I fix that? Thanks for any help!