I come on here and check out stuff all the time but have never posted. I was hoping somebody could help me with the first problem I've had with my new iPhone 4. I got a yellow warning sign with an exclamation mark saying my phone was overheating and needed to let it cool down. The thing is, it was cold, not hot. Turned my phone off and it went away. Wondering if any of you have had this happen to you. Any help would be appreciated!