Why do my account loggs off automatically in the middle of the session and erases whatever email I'm sending?

After I relog to the account the email did not go through and is not saved neither. Please help me correct this problem.
Why do my account loggs off automatically in the middle of the session and erases whatever email I'm sending?
Go 2 URL http://help.yahoo.com/l/us/yahoo/mail/or... give them an email address of yours that is working so they can contact you and try to help. Might be something within your Yahoo email account that they can fix. I've had great luck in getting response from them when I've had to contact them. Good Luck!