All,
I just installed zencart 1.5.4 plus the ckeditor (zen-cart-v1.5.4-12302014). If I now (in admin) goto Tools -> Define pages pages editor I get everything as expected. If I now select at Text Editor the CKEditor from the dropdown. It shows me quickly the CKEditor choice but then jumps back to Plain Text.

In the apache access log I find:

Code:
10.0.0.1 - - [01/Mar/2015:17:34:30 +0100] "GET /winkel154/winkeladmin/define_pages_editor.php?reset_editor=2&action=set_editor HTTP/1.1" 302 - "http://www.praktijk-dekorenbloem.nl/winkel154/winkeladmin/define_pages_editor.php" "Mozilla/5.0 (X11; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0"
10.0.0.1 - - [01/Mar/2015:17:34:31 +0100] "GET /winkel154/winkeladmin/define_pages_editor.php HTTP/1.1" 200 19162 "http://www.praktijk-dekorenbloem.nl/winkel154/winkeladmin/define_pages_editor.php" "Mozilla/5.0 (X11; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0"
This also happens if I use chrome in stead of firefox.

Anybody got a clue what I'm doing wrong??

TIA,
Arjan ten Hoopen