I have the same problem. Events from the .ics file are shown locally and on my ipage hosted site, but not on my media temple hosted site. I tried all of the above as well. Any help would be appreciated!!
I’m having the same issue and i don’t use the WP super Cache plugin. When I click on the Please update now”-link i’m directed to update-core.php which says: “You do not have sufficient permissions to access this page.” any ideas?
thanks.