Incorrect "Over Capacity" Window
Not sure whether this is iTunes' or my iPhone's problem...
I am attempting to sync music to my iPhone 4S. All software is updated both on iTunes and the 4S. When I'm on the iTune "Summary" page for my iPhone, it says I have 2.76 GB of space free. However, when I try to sync, a window appears telling me I'm over capacity by (this time) 406 MB. (This number changes constantly).
My iPhone, however, says it has 6 GB free.
Any advice for making my devices communicate better?
(I should add that about a week ago, my iPhone decided it wasn't able to play over half my music. I had to re-sync the entire thing manually to my iTunes library. Wondering if it's just time for a new phone?)
iPhone 4S, iOS 7.0.6