Does anyone know why I can't erase the music off my iPhone 3GS iOS 5.0.1 using iTunes anymore? I unchecked "sync music" and it gives me the warning, I check "okay" the content looks like it disappears from the "capacity bar" then I check "apply" and the bar goes back up and the content is still on the phone even with "sync music" unchecked. "Manually manage music" is also checked. I've tried everything. Is this a bug?