So I just got back my SR MBP from AppleCare—they replaced the logic board due to a failure of the nVidia 8600 graphics card. Now, I have to enter the serial number for all my applications (well, the ones that require it). I needed to re-authorize iTunes (bummer, 'cause now I've used all 5). I had to reauthorize Logic Express and Sibelius, too. I'm sure there are a lot of other apps that are going to nag me now. Apps that don't even require serials (iWork, etc) are showing their welcome/getting started splash screen again. Ick. Does anyone know what happened? It's as though they installed a new drive (although I'm sure they didn't). Did they migrate the data somewhere, and then pull it back in? I have all my discs, so it's not as though I've lost access to pirated software. It's just an annoyance, and I don't understand why it's necessary. Really, did I have to go to my attic to retrieve the Logic Express packaging? Jeez.