Linux box with two monitors and a mac laptop - cannot return from client

My server is a linux box (draccah-ld) : Synergy 1.3.6 Server on Linux 2.6.32-131.4.1.el6.x86_64 My client is a mac laptop (draccah-2-mn): 1.3.7 client

My config file is:

section: screens
   draccah-ld:
   draccah-2-mn:
end
section: links
   draccah-ld:
       left = draccah-2-mn
end
section:options
screenSaverSync = false
# My KVM uses Scroll Lock to switch screens, so set the
# hotkey to lock the cursor to the screen to something else
keystroke(ScrollLock) = lockCursorToScreen(off)
end

My linux box has two screens in a single session (DEBUG: screen shape: 0,0 3840x1200 (xinerama)). The two screens are on the right and the mac is on the left. What happens is that when i go to the mac, it gets stuck on the mac. I set debug to and saw just clipboard messages. When I set it to debug2, I get hundreds of mouse movement messages, which are not very understandable to me.

Any help would be really appreciated! I cannot seem to go back from the mac to the linux box :-(

Thanks!