- Starting with a page of pre-existing, well-formatted content, delete a paragraph in the middle.
- Paste a simple block of copy from MS Word, being careful to NOT use the 'Paste from Word' feature.
- Put the cursor after the last character of the copy you've just pasted, hit the Enter key.
- Use the 'Paste from Word' feature to paste in the same content, checking both boxes in the dialog.
- Flip to Source view and back. The content you pasted last will have jumped to very bottom of the page.
http://dev.fckeditor.net/ticket/2659