I received an email invitation to join a Photo Stream. When I clicked on the "Join this Photo Stream" link on my MacBook Pro, I was taken to a page with the following message: > Photo Stream > Follow these steps to join a shared photo stream > 1. Make sure you have an iPhone, iPad or iPod touch running iOS 6 or a Mac running OS X 10.8.2 with iPhoto 9.4 or Aperture 3.4 or later > installed. > 2. Sign in to iCloud on your devices. > 3. Open the invitation email on an updated device and tap the Join this Photo Stream button. I was running OS X 10.8 at the time, so I upgraded my OS, and I now have 10.8.5. However, when I click on the link to join, I still am taken to the same page. There doesn't seem to be a caching issue, because I cleared my cache and also opened the link in a different browser. I'm logged in to iCloud, and I'm able to create a Shared Photo Stream through iPhoto (v. 9.4.3) and share it with others, and they can see the photos in the stream. However, I don't see the Photo Stream that was shared with me, and I still get the above message when I click on "Join this Photo Stream" in the original email. I already tried copy/pasting the link from the email to the browser, and I still get the same page and message. Is it possible that I need to have OS X 10.8.2 instead of 10.8.5 in order to accept the invitation to the Photo Stream?