I recently sold my MBP and so im stuck with a windows PC until apple refreshes the new mac minis. I originally synced this iphone up with my macbook pro. Now i'm trying to sync it up to my windows PC. I plugged it in, and logged in my AppleID/iTunes account and clicked "transfer purchases" just so i could authorize the iphone on this computer/itunes. So the iphone is registered but it still won't let me transfer songs from itunes library to the iphone device. Also, where can i manage which computers are authorized for the iphone to use/sync to because im already at 3/5. Also, one more quick question. I just bought an ipad and "accidentally" synced it up to this computer and put songs on the device from this itunes library. Will this still be ok once i buy my mac mini (will it sync up properly)? Or will i have to delete everything to set it up again...? THANKS!