Hi Guys, I recently moved to a 4s from an Android and the switch has been well worth it. I love the phone but have noticed one issue that is aggravating the hell out of me. I keep setting personal ringtones (stock rings that come with the phone) for individual contacts but after a day or so they get reset to default. I assume it has something to do with my contacts being in exchange but am not positive. Has anyone come accross this issue recently and if so is there any fix? I have researched this issue on the internet and found this was big issue back in 2008 but have not found any recent information on it.