since upgrading to 2.6, my site is working fine across the board... except for AMX. Every time I load the "manage" page in IE, the status bar shows "done, with errors on page." Clicking on the Category manipulation icon, I can change the categories, and then the present category disappears, but is NOT replaced by the new one(s), and no changes are saved. clicking on any of the other tool icons for AMX produces no result whatsoever. the date-published icon produces a calendar that cannot be updated, and the others (toggle, etc) are just completely dead.
For whatever it's worth, the site I'm using this plugin for is still under development on a local host installation, so I'm absolutely certain that no other environment variables have been altered. I've also tried deleting the plug-in entirely, re-downloading and re-installing, with the same result.