Tonight I just spent over an hour trying to figure out why in our installation of eZ Publish I could not use the article editor to make some changes in an existing article. I got random errors, including eZ Publish declaring that
<img> was in valid variable.
For some reason along the way I had started to use Internet Explorer for all my interaction with the CMS we use for work. I guess that when they upgraded to IE9 the compatibility between IE9 and eZ Publish broke. When I would click in the editor block and made any changes they would not save. Also when I clicked on any of the editor icons the editor box would simply lock up…
To fix the problem all I had to do was start up my default browser, Google Chrome 19, and everything worked.
So I guess the moral of this story is do not use Internet Explorer for anything other than testing your web-sites.