I adding this topic 5 days ago and it hasn't been answered. I upgraded to 3.5 and like many the "add media" button no longer works. This is extremely frustrating. I do not know how to edit code- in fact my tech skills are minimal. Many of the long list of troubleshooting fixes might as well be written in Japanese. Is there anyway to downgrade to the previous version of WP that worked? I would like to be able to post pictures/ gifs on my site. I use the Twenty-Ten theme.