My MacBook Pro is at the Apple Store getting its third logic board and, strangely, I’m okay with that. I first noticed a problem with the right USB port dropping off when accessing a USB Drive or recording. After some diagnosis at the Apple Store, they figured the logic board needed to be replaced. So I turned it in and a few days later got the cal to pick it up.
When I showed up, a very nice Apple Genius explained the new board had a small defect for the onboard battery (the one that keeps time when you shut it down). They had already ordered a replacement but told me to take the Mac home until the new one showed up. Sure enough, they now have the replacement board and are setting things right. This was a great consumer experience. Not because the board was wrong but because they cared enough to figure that out and get the situation resolved even before I knew about it.
As an aside, if you ever get a new logic board, make sure to de-authorize your iTunes account before the replacement. The logic board has the serial number on it so to the rest of the world it is like you got a new computer. It looks like I’m also going to need to restart the Time Machine.
Looks like there might be some issues with logic boards on some recent builds - my MacBook Air is in the shop for the same reason (I ordered it the day after the keynote so it is is in the first builds). I had not used the Air for a couple of days and when I booted it up a couple of days, nothing came on. Did not have a change to de-register so hopefully will not have a problem with authorizing iTunes.
This wasn’t on the MacBook Air but my older MacBook Pro. The problem was the right USB port which on this moel is attached to the logic board. Had it been the USB ports on the left side, it apparently would not have needed a logic board but something else.