[(nearly) solved]CKeditor in GS3 not working, in GS 2.0.3 working ...

[Connie]

If you enable debug mode, does the Edit page show any errors? ("Warning", "Notice")
(If not, look at its source code)

no, DEBUG is enabled, no warning in the source code also

My server-admin is just trying to figure out what could be the reason....

what astonishes me is that I can run CKEditor 3.5.2 on that site standalone, out of the box, but not within GS 3.0

PS: I also checked, but there is no logfile written

but I get this message in error console / Firefox:

"editor.DataProcessor is undefined"