My iTunes library is located on an external HD. I now have a new iMac that needs to have access to that library (like my old eMac did). Transferring the settings from the old eMac is not currently possible. Right now, nothing shows up in the iTunes library of my new iMac, even with the external HD connected. How do I enable my new iMac to have access to my iTunes library on the external HD without having all those songs copied onto the internal hard drive of my iMac (i.e., I want to keep the actual copies of the iTunes stuff on the external HD only). Please let me know. Thanks.