Dear Jose
Thank you of your quick response. I updated from XP to 8.1. In XP I used IE 8, in 8,1 I’m using IE11. Only when I used IE8, there wasn’t anything wrong.So deactivating yes or no was not the issue. I do not think it has changed in IE 11. When you look in the log of the plugin it says its only good for IE7 en other older browsers. The problem is that the maker hasn’t worked on the plugin since 2010.
I have to change CKeditor for WordPress to another Editor which programmer has recently updated his plugin.
CK Editor is no good anymore.
The reason why I haven’t updated to 3,9 is that i cannot update. I click ont the update button and WP sais I already have the most recent version.
How did you know this?