Xwindows does not pan with synergy mouse cursor

Hello All, I am currently using Synergy server on Debian and XFCE4, I have two clients 1 XP Pro and the other is also Debian and XFCE4. The two clients are laptops and I use panning to match the screen size of my main desktop. The Laptop running XPPro pans fine, when the synergy cursor moves to a border, the screen follows. The Laptop running Debian and XFCE4, the screen does not pan when the synergy mouse cursor touches the edge of the screen. The cursor "disappears" off the edge of the screen and moves where it was asked to go, the screen just doesn't follow it. If I use the touch pad on the laptop to move the X cursor directly the screen will pan and I can see the synergy cursor so the panning works fine, just not with the synergy mouse cursor. I am not sure if this is to do with synergy or xserver-xorg but it is inconvenient as it means I have to keep reaching to the touch pad on my laptop to move the screen. Any hints or thoughts would be greatly appreciated.