ArgumentNullException When Searching for a User on Local Machine
<p>Every time I do <code>UserPrincipal userPrincipal = UserPrincipal.FindByIdentity(pc, user.UserName);</code> or any call to FindByIdentity  I get an ArgumentNullException with the parameter name being sddlForm. What can I do to prevent that exception?</p>

<p>It doesn't seem to cause any problems though cuz if I ignore it everything still works. I was just curious if it could be fixed and how.</p>
