I recently bought a MBA which came with GarageBand'11 and on my desktop I already have GarageBand'09. On App Store on my MBA it says I own GarageBand'11, but when I try to install it on my desktop it says I already have GB'09 and it asks me if I wanna buy GB'11. I do log in with same appleID of course. Is there a way I can get GB'11 on my desktop? It's not like I ever wanna use my MBA for recording?