I use Outlook Express as my default email client, and I also use Thunderbird as well. Seems like I've heard that NOD is more or less kind of geared towards working with Outlook, but NOT with Outlook Express or Thunderbird. So my question is....is it counterproductive to use Outlook Express or Thunderbird for your primary email client if you use NOD? Can you use NOD with other email clients, like Yahoo or Gmail? Also, can someone please explain in a little more detail why NOD doesn't seem to work with Outlook Express...OR....if it does, why I've heard from some people that it doesn't scan incoming/outgoing mail....and/or if that's even correct, or incorrect, etc.?