Trouble using gpo to set remote desktop check box

Trying to find a way to to flag the remote desktop checkbox using a domain gpo. I have a home.local domain and after testing a successful remote desktop from server 2003 to client xp pro, i turned off the checkbox in the remote tab of my computer properties. I read and article about using a gpo when you did not want to manually set the checkbox. It said to use a windows firewall gpo to allow remote desktop exception. I added the necessary ips and localsubnet text with no luck. Any help is appreciated.