Email trouble

Solution
If you sign into gmail and look under settings, forwarding and pop/imap you will see a field for When messages are accessed with POP. You can change that setting. There is also a link there on how to configure your mail client.
it could also be that your client isn't set to delete the messages from the server, thus each times it checks for new mail it downloads again all emails included those previously deleted.

Tell us what client you're using and i'm sure someone will be able to guide you to the right settings
 



Outlook 2007?