heres how to do it if ya aint figured it out yet...
Open the Group Policy snap-in (Gpedit.msc).
In the left pane, under the Computer Configuration branch, expand the Administrative Templates branch.
Expand the Windows Components branch.
Click the Terminal Services folder. In the right pane, double-click Sets rules for remote control of Terminal Services user sessions.
On the Setting tab, click Enabled. In the Options box, click Full Control with(out) users' permission