Well.. I had my iPhone on 3.1.3, and was happy with it.. 4.0 update came along, and I thought why not? I downloaded and installed it. Everything worked great. Until I went outside my house. Since I was using our WiFi connection at home, there was no problems at all. But I obviously use the 3G network outside. But it doesn't seem to work anymore. The phone can find the network, it just doesn't work. I can also sends texts and make phone calls. Thats no problem. The problem is 3G internet. I tried restoring it, and it worked. Yes! I then used my backup to get everything back on (contacts, apps and so on).. Then the 3G internet stopped working again.. So I guess theres a problem with my backup.. I don't want to start from scratch, so is there anybody that can help me with avoiding this problem? Thanks.