Mavericks Mail update
I installed the latest (11/7/13) Apple update for Mail and opening mail I got a popup window about "optimizing my mailbox" before it disappeared and then nothing. The Mail app is using cpu and memory, but it won't show the window or anything after almost an hour. This isn't mentioned in Apple's support Web page for it or in any message. Is this one of those go to dinner updates and hope it works?