My Macbook Pro has been in for repair twice now, first time I got it back the bottom casing was scratched on return so they said they'd replace it during repair 2. I got it back today, wasn't replaced. I guess they just completely ignored that in the notes. Anywho, was just curious as to how Apple even replaces the bottom casing since it has the Serial Number on it. ? I assume they have some machine that just etches on your serial number to a brand new plate, but does the laptop need to be sent out for something like that? (and I know when they replace it, the new one DOES have your serial number on it as well.) Just curious if anyone can confirm anything of their procedure.