Had GM Build 2 of Mavericks on. Went to app store,downloaded the 5.39 GB Mavericks file. Started the install and went to bed. Woke up this morning, logged into my mac, and when I go to the app store...it shows under purchases "Download" next to mavericks. Should it now show installed? I am in the process of downloading it, AGAIN, but not sure if I need to or not. Any help appreciated. Current build in About This Mac is 13A603