Q: new MBP 2011 Garageband can't find the jam packs, why? pls help

my iMac garageband + jam pack works fine, but after i transfer the  jam packs to my new MBP 2011 recently , it can't be found when i launch Garageband

i checked & compare the same location of the jam pack between my imac & MBP

did i do something wrong?

pls help

thanks for advice