I just recently set up a 1.6.1 install and am having a weird issue with the cms editor. When I click on the image button and then try and open up the media manager/library, the lightbox that pops up over the cms page has a 404 error instead of the image library.
Using chrome’s network panel I can see that it is looking for (but not finding) this:
The media manager does work from the static blocks section which is strange. Any ideas on how to fix this? Are there any files I should try re-uploading or something?