This is a very strange question since I have not noticed anyone else having this trouble.
I installed this great product and got it up and running using a 2003 AD without a hitch until I started looking at the user list. Inside my basedn I have both computer and user accounts. When searching for users in the admin panel or spark you have the ability to add a computer to your firends list. I have modified the User filter to include objectClass=user, but the computer accounts are still appearing in the search.
Any help is greatly appriciated!