I'm trying to update my software. Trying to update to: Mac 8.0.18608. I haven't had this problem in the past. I've got Mac OS X version 10.8.4. I have version: Mac 8.0.18483 It asks me if I want to download a new version. So I click on "install update". And nothing happens. If Parallels is already open it closes and nothing more happens. If it is closed and I'm being asked before it's opened nothing happens. It seems to start doing something but then nothing happens. Anyone have this issue?