Hello guys, I recently bought a second hand macbook pro 13" i5 in China... It works fine and really seems genuine except for 2 really strange things: -My serial number doesn't seem to be valid when i tried to register it (?????) -When I look at "About this mac", it says Macbookpro8.1. and in Hardware, it does mention Thunderbolt. So it seems to be an early 2011 Macbook pro... BUT the really weird thing is: there is no thunderbolt symbol next to the Mini-display port. It's got the old mini-display symbol... I've tried to find if first MBP with thunderbolt technology had not changed their symbol yet but apparently they had... What do you guys think??? Isn't that weird?