I am trying to findd out what week my imac was made in and I have read in multiple places that you can figure this out by looking at the order number sent in the shipment confirmation email. I have read that the 3rd and 4th numbers show what week it is. For example W54507846 would mean that Imac is a week 50. My order number however is W6679xxxx meaning I have a week 79 Imac which is not even possible. My imac has been delivered but I can't open it until Christmas where I will be able to find out if it has the yellow tinge, cracked screen, flickering screen etc... This is my first purchase of a mac and if it is not working, it will be a huge dissapointment considering it is a christmas present. Right now I'm praying that it works and does not have any problems.