Upload images not working in WordPress 2.8

I’ve installed WP 2.8 and now I can no longer upload images when creating a post.

When I click on any item in the Add Media area nothing happens. The usual pop up does not appear. So, I can’t upload images, videos, etc.

And it appears I can’t drag and drop images, the help pulldown doesn’t work. If it does not have a button associated with it then it appears to be disabled.

I have to be able to upload images to make a post.

How do I fix?