Music management in itunes

[jack77]

I have the manual manage music box checked and have previously dragged and dropped music from itunes library to iphone but this ability has vanished is there any way i can get it back???

[jmann]

Just plug in your iPod and the click on it's icon on the sidebar, then on the summary tab check the box "Manually manage music and videos"

[jack77]

I have that box already checked. It lets me manually manage it sometime but other it wont. I must be doing something but i've not idea what, any ideas as its getting quite annoying?