Outlook Express is set as the default email client in internet explorer, Exactly how to resolve this depends on what version of IE you are using, but essentially the solution is to go into internet settings options - in IE6 it is tools/internet options/ then choose programs and set default email client. You may have to ask yahoo support for exact details. Thanks for the help and thanks to all others who helped with this problem. Yahoo sent a download that fixed the problem. Grace --------------------------------- Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish.