Hi everyone. This might be more of a software query than Retina Macbook specific but posting it here as my Macbook Air is not affected. I have a 13" Retina Pro Late 2013 (2.6/8/256) and an Air 11" 2010 (Core 2 Duo). With both machines on a fresh install of mavericks 10.9, my shutdown time on the Air is about 2 seconds. On the Pro though it's more like 30. This is after multiple reboots, to make sure it's not the OS settling down. I run other OS's via Bootcamp so this is a bit of a pain, although not life threatening! I get a light grey screen for 10-20 seconds with a cursor, then the cursor goes and the light grey screen stays for around 10 seconds more. There is no spinning wheel. I tried reinstalling, making sure there is nothing I had changed or installed that might do this. I reset my keychain at one point, for an unrelated reason and that seemed to fix it for a few reboots. Any ideas and does anyone else see the same thing? Thanks in advance.