fckeditor+both secure and nonsecure items

WIndow XP IE-6.0.2900 sp2
I don't know how to cope with such a problem, I have ssl certificate installed on my computer(https), but every time I'm trying to enter this area I still have javascript alert, smth like "This Page contains both secure and nonsecure items". I checked everything and found such a problem, when I turned off FCKEditor it works perfect otherwise it shows me javascript alert... Maybe someone can tell me what's wrong, because I don't want to uninstall FCK and install the other editor. By the way to get such massage I shouldn't upload file or image, it's enough for me just to refresh my page... Needa help!!!