Why does a "Session Timeout" window appear as soon as I log into webmail?

Webmail requires your browser to be cookie-enabled to function correctly. By default, Internet Explorer disables the use of these special files. To enable cookies in Internet Explorer 6.0, please follow the below instructions:
  1. Open Internet Explorer
  2. Click on "Tools"
  3. Click on "Internet Options"
  4. Click on "Privacy"
  5. Click on "Advanced"
  6. Tick "Override automatic cookie handling"
  7. Tick "Always allow session cookies"
  8. Click "OK"
  9. Click "OK"
  10. Close Internet Explorer
When you reopen Internet Explorer the "Session Timeout" window should not prevent you from logging into webmail