I got my brand new imac yesterday (i7 with 1tb ssd) but I think I may have a problem. On booting up there is a progress bar for a few seconds just before the log in screen. Is this normal as I'm coming from windows? All I have done to it is add extra ram (crucial 16gb added with apple ram still installed) which is showing that it has installed ok. I'm thinking I should maybe take the new ram out to see if it still does it?