I've dumped all my media onto a NAS device and have had itunes locate all the files.. no problems there.
Now everytime I try to add a media file to my iphone, it displays a ! next to the file and tell me to locate it manually. Which is fricken annoying & I end up deleting the album and re-adding it rather than doing every song individually.
Any idea how to stop itunes doing this, as I make sure the network drive is on the same drive letter everytime and check the drive is mapped & accessible before starting itunes.
Struggling on how to word all of that ^^^^^^^^ into a google question that give me a answer of the various apple forums

