I have my Itunes Library on a 1TB TimeCapsule. Sometimes i have the Macbook pro on all day, when i launch iTunes and select a track it says its not avaiable. The only way i can wake up the Timecapsule hard drive is to go to File Browser and select files on it, i then hear the Time Machine Hard Drive start up. Returning to itunes the music then plays. What can i do to resolve this problem ?