Accessing Users & Groups Remotely

I have a small network consisting of five machines three of which are XP
Pro. I have admin rights to all machines have been getting up to speed with
remote management using the computer management features of XP Pro. My
problem is that I can connect to PC 1 from PC 2 and view the users and
groups from a remote location but am not allowed to view the users and
groups in reverse fashion. I am able to connect but there is a red x on the
users and groups in Computer Management and a message that says "The Error
Was: The Network Path Was Not Found". As I said I am able to connect to the
remote machine and do other remote admin tasks such as set new shares and
manage Services but just not Users and Groups.

Anyone have any suggestions?

Thanks
JT