When you turn Track Changes off, your tracked changes (or ‘marked-up’ text) will still appear in your document. By turning this feature off, you have simply stopped MS Word from tracking any further changes, you have not actually indicated that you wish to return to your original document or accept any changes made. In order to remove the changes from your document, you will need to go through them one by one and decide whether to 'accept' or 'reject' each change. There are articles on how to do this in our Resources section for both Word 2003 and 2007.