I've been using a 2010 MBP for the last 2 years. I mainly use it for garageband, it's been an excellent program. I had songs with a lot of tracks and the macbook wasn't cutting it anymore so I bought a new imac. The garageband that is preloaded onto my new imac, is to say kindly, horrible. I will refrain from going on a rant on how awful this "updated" garageband is. I believe it's called 'garageband 10'. I have a few questions, would very much appreciate any help. - First, is there a way to get the version of garageband on my macbook onto my imac? - Second, I have many custom instruments on my macbooks garageband. I would start with a radio sound effects midi track, drag various blues guitars, bass, drum samples onto the keyboard and make beats that way. This was my favorite thing about garageband. I saved my macbook with TM and started the imac up from the macbook time machine HD. All of my custom instruments appear in list of "User Channel Strip Settings > Sound Effects" but when I open them I they do not work and I get this message "EXS24 instrument "DK Instruments.exs" not found." or for example "EXS24 instrument "bbking drumbreak.exs" not found.". I have also been trying to navigate through this new garageband and can't seem to figure out how to drag samples onto musical typing and create new instruments. I do it on my macbook by creating a new radio sound effects midi track, and just dragging the mp3 track into garageband, then dragging it onto a key. Thanks.