'''re Error message (can't send full screen shot):''' How to create an image of what you see on monitor. Use the 'prt scr' key on keyboard. Open a simple image program like Paint Use Ctrl+V to put screendump into Paint - edit as required and save as a jpeg image file in a suitable eay to locate place eg: desktop Then in this forum use the Add images 'Browse' button to locate the saved jpg image file and clickon Open to upload. The error message says : Login to server '''smtp.'''comcast.net with username carp,jm@comcast.net failed. The bit that says the server name - it says '''smtp''' meaning you are trying to send an email when it fails. So you have to check the smtp setting you have for comcast account. * In 'Account Settings' * Scroll to bottom of left pane and look below Local Folders. * You will see 'Outgoing Server (SMTP)' - click on it. * On the right it will show you a list of all your outgoing servers. * Each mail account/email address will have it's own smtp server specifically for that email address. * starting at the top of the list, select each one in turn until you find the one that has the incorrect 'User Name' - * click on 'Edit' Edit the following: * Description: Enter the full correct email address which should be the same as the 'User name' - this means you use that description to check the account is using the correct smtp. * User Name: edit the email address so it is corrected. * click on OK Now check that mail account is using that smtp. * In Account Settings * In left pane - select the account name for the carp.jim comcast mail account * Look bottom right for it's Outgoing Server SMTP - it should display what you entered in the 'Description' field. * If yes it's using the correct one, then that's ok. * If no, it's pointing to something else then clickon the drop down and select the correct one where Description matches name/email address of account. NOTE- DO NOT click on the 'Edit SMTP_Server' button or you may edit the wrong smtp - leave it alone :) Finally exit Thunderbird. Wait a few moments for background preocess to complete and then restart Thunderbird. This ensures all updated information has been copied into preference files.