Hello,
I found this bug report: http://dev.ckeditor.com/ticket/10604 So the issue should be closed. I can not reproduce it in the Online demos, but with my Asp.Net Version (downloaded yesterday) this problem still occurs in IE11.
Do I have to set a special setting?
Kind regards,
Markus

Solution found
Well, looks like the Asp.Net Version uses an old version of the ckeditor... :-( So no IE 11 Support for this Version...
IE11 works best with CKEditor
IE11 works best with CKEditor 4.3 and above. You can try using the missing files from v3 in CKEditor 4.3.
Customer and Community Manager, CKSource
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