Did not find this problem in search, so here goes. I am currently running OS X 10.10.3 on my 27" iMac with no problems. But, I want to download the current version to create a USB install disk. When I try to download from the App store, it tells me it is all ready installed and do I want to continue. I select continue and nothing happens If I click on the name it brings me to the download page and again nothing happens when I select continue. Has anyone else been able to download the current version from the App store or from anywhere?