I had to reinstall Thunderbird. Once I got into it, I noticed the layout had changed. Before all the message would be on top and if I clicked on a message, the message would show up on the bottom of the page. Now the message shows up on the right hand side. How do I change it to back it was? I did make a backup of my Thunderbird before I reinstalled it (months ago), how can I transfer my address book from that copy to the new copy? Thanks Dan