I just got an iMac and a midi keyboard and am trying to make music on GarageBand. I'm having some issues and am hoping that someone here can help. If I use sampled music from iTunes to make a drum track or instrumental loop GarageBand is unable to locate these files after I save and reopen so my work is lost bc GarageBand loses the files I used to make a track. Help would be greatly appreciated. This thread can also be a general GarageBand for discussion and troubleshooting.