There appears to be a bug with SCAYT and ForcePasteAsPlainText. When SCAYT is enabled, ForecePasteAsPlainText does not work. Also, I remember from previous versions when you enabled ForcePasteAsPlainText, that a window would pop up. Is anyone else having the problem?
EDIT: I forgot to mention, that the problem is happening the most with Word 2003 paste.
EDIT: I forgot to mention, that the problem is happening the most with Word 2003 paste.

Re: SCAYT And ForcePasteAsPlainText
http://nightly.ckeditor.com/demo