Why can't I turn on Photostream?
I open iPhoto and regardless if I go to the Photostream tab and click "Turn On Photostream" or go to iPhoto Preferences and check "Enable Photostream", nothing happens. The button does it's little animation to acknowledge I clicked it and the check box unchecks as fast as I check it. I've deleted the iphoto related "com.apple...plist" files in ~/Library/Preferences and tried again and still nothing. It's iPhoto 9.2.3 and I'm running Mac OS X 10.7.4
Mac Pro, Mac OS X (10.7.4)