Greyed out songs on iphone after iOS 5 update
So I updated my iPhone 4 for the iOS 5 update. Before doing mine I did my husbands iPhone 4. My update seems to have been successful but all my songs are greyed out, however they're fine on his phone. It did prompt me to change our applie ID when we set up his phone so we did that. We're both signed into the same apple ID (just like we were before the update), and I just can't figure out whats going on. HELP!!
Windows Vista