I have an iPhone 4 and an iMac and having been syncing the 2 ever since I had the phone. Today was the first time I tried to BackUp/Sync since last week and when I connect my iPhone, each tab (Music, Apps etc) is unchecked. So for example when I click "Apps" where it says "Sync Apps" , normally it is checked off, but now it isn't and when I check off the box it says if I sync I will lose all the Apps on the iPhone. And then after that window pops up, it shows a preview of what the order of Apps would be on my iPhone and it's all wrong. I don't know what the heck to do.