Wondering if I'm just being stupid... I just unboxed my brand new 13 inch Macbook Pro. Model Late 2011, with Lion, 10.7.3. It came with the power adapter, display adapter, instruction manual, screen cleaning wipe, a couple of apple stickers. But no installation DVD for Mac OS 10. Which I have been used to from my older Macbook models. Should that be in there, i.e. do I need to call Apple support because it is missing?!