Uninstalled everything Yahoo, esp. mail due to problems. Switched to Comcast.net, my server for their mail program. Friends are getting "cannot deliver" notices from Yahoo each time they send me mail, even though the mail does come through. Yahoo sends: Status: 5.1.0. Mail from rossglen@comcast.net> 554 reply: 554_delivery_error_dd_Sorry_your_message_to_rossglen @yahoo.com_cannot_be_delivered_Thisaccount has been disabled or discontinued_[#102]._-_mta553.mail.mud.yahoo.com Diagnostic-Code: smtp; Permanent Failure: Other address status.