Say for example you add a new post (WP 2.7.1 on Firefox 3.0.8) and want to include an image.... I added a new post, clicked the 'add image' icon from the WYSIWYG editor, uploaded a new image to the gallery from my PC, selected 'add to post' but nothing happens - I get redirected to a blank screen.
(this was using the link url option from the gallery screen, not post)
Error: win.send_to_editor is not a function
Source File: http://www.mydomain/wordpress/wp-admin/media-upload.php?type=image&tab=library&post_id=11
You get the same error if you use the post url though.