Yes, that is basically my problem. I tried all three WYSIWYG editors and all of them end up not being shown at all when creating or editing an entry.
I always followed the installation guides, tried all the different relative paths - with "/", without, with "/tinymce", without, from "plugins/...", from before that, etc.
Of course, the WYSIWYG-option is enabled.
The closest I got with something was with the FCKeditor, when instead of showing an editor it showed the start page of my browser. Seemed like a file wasn't found, and when I tried with another path, I was back to showing no editor at all.
The good thing is that I most likely don't need them, since I might as well use the normal editor and switch to direct HTML when needed, but still...
Clueless here.