11. Check the box next to "Connect automatically when starting TCP/IP applications"
12. Uncheck the box next to "Prompt to stay connected if idle for X minutes" (Optional)
13. Uncheck the box next to "Disconnect if idle for X minutes" (Optional)
You may leave the optional steps checked if you wish it to disconnect you if idle, however, for DSL that is not necessary.
14. Check the box next to "Disconnect when user logs out"
15. Click the OK button.