XP SP3, Norton Internet Security, Yahoo Mail, Netzero dial-up. When I try to download an attachment, the progress bar gets to about 99% and stops, never finishes. Took the same computer and connected it to Cable, downloaded OK, any attachment opens fine. Sent the same attachment to another email address and accessed through a Webmail program using the same dial-up, downloaded OK. All attachments in otherer emails open OK. So, the problem only happens using Yahoo Mail through Netzero dial-up. Yahoo Mail works fine through Cable, and dial-up works fine when not going through Yahoo Mail. Unfortunately, this computer requires Netzero dial-up and Yahoo Mail together. Any suggestions?