Looking for a little help. Any app that did not come pre-download (stocks,weather,maps,sms,etc) on the iphone will open for one second and then shut right down. I have restarted my phone, restored, powered off and on and nothing seems to work. Any advice on this? And I did a quick search and found a few people with similar problems but no solutions. Oh and I am not Jailbroken or unlocked. On ATT's network.