(TinyMCE version 3.4.9)
Hi,

I am loading tinyMCE from the path "/local/scripts/admin/tiny_mce/tiny_mce.js" with advanced theme. The editor works fine but when I try to load the image popup the dialog.css does not load and Firebug reports a 404.
The popup code is trying to load the dialog.css relative to the page in which the tinyMCE editor is loaded (in this case "/schools") so the final URL called by the image popup code that returns the 404 is:

https://[domain name]/schools/themes/advanced/skins/default/dialog.css"
instead of
https://[domain name]/local/scripts/admin/tiny_mce/themes/advanced/skins/default/dialog.css"

I am doing an init() with tinyMCE.baseURL='/local/scripts/admin/tiny_mce'; and have tried permutations including the full hostname and path, trailing slashes etc. but no success.
Also have tried some of the document_base_url and relative_urls config properties as well.

Any ideas why the dialog.css is not loading ?

Many thanks in advance for assistance.