I need help. During the day, the data on my Iphone 4 is non existant, despite it showing 3-4 bars of 3G. If I have access to wifi, I'm fine, but if not, forget about it! Since I updated the software and got the new messaging that everyone raves about, I had to turn it off. It didn't work for me since I have no data during the day. I'm getting extremely frustrated. I used to have the opposite problem...I went WAY over (at least 2 gigs) my data allowance every month, even though I never watch videos or do anything other than emails, FB and some games (WWF, HWF, etc.) and then got dinged $10 per gig over. I'm lost....HELP!!! What should I do??