Hi,
Sorry it’s taken a while to reply. Thanks for your help ynhat. It seems like the same thing for me. If you add a custom image field to a taxonomy this causes the problem.
I’m not sure how to see the javascript error, though I suspect it’s the same as ynhat’s. If I try to recreate the error in with the Firebug Error console showing, the browser locks up.
So in summary, to recreate the error, create a custom taxonomy with an image field associated with it. Then try to add an image to the main area of a post.
Hope you can fix this as I do want to ad images to my taxonomies, although I guess I can work around it by adding a text field instead with the image URL in.