Hi Diet . . .
I suspect you are using Firefox as your browser. You need to un-check the HTML formatting box and check the "Automatic Cr/Lf" box at the bottom of this reply window.
That should out out your links and the formatting in your replies.
Either that or switch to Internet Explorer for JWD. I only use IE for JWD because it lets you use the smilies and the quotation boxes and automaticallty embeds YouTube links