One of the computers in the office where I work has developed a new problem. Whenever the user sends an email with an attachment, it just times out. If there is no attachment, the mail goes fine. He has no problem receiving attachments. This problem just up and started a couple of weeks ago. I have set the "time out" to max (5 min) I have switched cables, switch ports, and reinstalled outlook express. The weird thing is, if I bypass the router and hubs, the mail goes through. It is just the one computer out of 20 in the office. Any help or suggestions would by hugely appreciated.