Synergy connects, but mouse won't switch screens (and no debug output showing issue)

Trying to setup Synergy, and can't seem to get it right. Here's the config:

• Server: WinXP with screen named TV
• Client: Ubuntu 11.04 named LAPTOP

Server configuration:

section: screens
    LAPTOP:
        halfDuplexCapsLock = false
        halfDuplexNumLock = false
        halfDuplexScrollLock = false
        xtestIsXineramaUnaware = false
        switchCorners = none +top-left +bottom-left 
        switchCornerSize = 0
    TV:
        halfDuplexCapsLock = false
        halfDuplexNumLock = false
        halfDuplexScrollLock = false
        xtestIsXineramaUnaware = false
        switchCorners = none +top-right +bottom-right 
        switchCornerSize = 0
end

section: links
    LAPTOP:
        right = TV
    TV:
        left = LAPTOP
end

section: options
    relativeMouseMoves = false
    screenSaverSync = false
    win32KeepForeground = false
    switchCorners = none 
    switchCornerSize = 0
    keystroke(F12) = lockCursorToScreen(toggle)
end

When I connect, the server log shows:

2011-07-04T09:57:18 NOTE: client "LAPTOP" has disconnected
    ..\lib\server\CClientProxy1_0.cpp,209

2011-07-04T09:57:21 NOTE: accepted client connection
    ..\lib\server\CClientListener.cpp,130
2011-07-04T09:57:21 NOTE: client "LAPTOP" has connected
    ..\lib\server\CServer.cpp,299

2011-07-04T09:57:38 NOTE: client "LAPTOP" has disconnected
    ..\lib\server\CClientProxy1_0.cpp,209

2011-07-04T10:01:48 NOTE: accepted client connection
    ..\lib\server\CClientListener.cpp,130
2011-07-04T10:01:48 NOTE: client "LAPTOP" has connected
    ..\lib\server\CServer.cpp,299

2011-07-04T10:01:53 INFO: screen "LAPTOP" grabbed clipboard 1 from "TV"
    ..\lib\server\CServer.cpp,1239

2011-07-04T10:01:53 INFO: screen "LAPTOP" updated clipboard 1
    ..\lib\server\CServer.cpp,1524

2011-07-04T10:02:02 NOTE: client "LAPTOP" has disconnected
    ..\lib\server\CClientProxy1_0.cpp,209

2011-07-04T10:07:01 NOTE: accepted client connection
    ..\lib\server\CClientListener.cpp,130
2011-07-04T10:07:01 NOTE: client "LAPTOP" has connected
    ..\lib\server\CServer.cpp,299

2011-07-04T10:08:40 INFO: screen "LAPTOP" grabbed clipboard 1 from "LAPTOP"
    ..\lib\server\CServer.cpp,1239

2011-07-04T10:08:40 INFO: screen "LAPTOP" updated clipboard 1
    ..\lib\server\CServer.cpp,1524

On the client, I run: synergyc -d DEBUG -f -n LAPTOP -l --log=/tmp/synergy.debug TV

2011-07-04T10:06:50 INFO: Synergy 1.3.6 Client on Linux 2.6.38-10-generic #44+kamal~mjgbacklight4-Ubuntu SMP Mon Jun 6 19:40:12 UTC 2011 x86_64
    /build/buildd/synergy-1.3.6/cmd/synergyc/synergyc.cpp,765
2011-07-04T10:06:50 DEBUG: XOpenDisplay(":0")
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsScreen.cpp,889
2011-07-04T10:06:50 DEBUG: xscreensaver window: 0x00000000
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsScreenSaver.cpp,342
2011-07-04T10:06:50 DEBUG: screen shape: 0,0 1920x1080 
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsScreen.cpp,131
2011-07-04T10:06:50 DEBUG: window is 0x07e00004
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsScreen.cpp,132
2011-07-04T10:06:50 DEBUG: opened display
    /build/buildd/synergy-1.3.6/lib/synergy/CScreen.cpp,41
2011-07-04T10:06:50 NOTE: started client
    /build/buildd/synergy-1.3.6/cmd/synergyc/synergyc.cpp,339
2011-07-04T10:06:50 NOTE: connecting to 'TV': 192.168.1.75:24800
    /build/buildd/synergy-1.3.6/lib/client/CClient.cpp,115
2011-07-04T10:06:59 DEBUG: open clipboard 0
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,316
2011-07-04T10:06:59 DEBUG: empty clipboard 0
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,269
2011-07-04T10:06:59 DEBUG: grabbed clipboard 0
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,292
2011-07-04T10:06:59 DEBUG: close clipboard 0
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,351
2011-07-04T10:06:59 DEBUG: open clipboard 1
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,316
2011-07-04T10:06:59 DEBUG: empty clipboard 1
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,269
2011-07-04T10:06:59 DEBUG: grabbed clipboard 1
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,292
2011-07-04T10:06:59 DEBUG: close clipboard 1
    /build/buildd/synergy-1.3.6/lib/platform/CXWindowsClipboard.cpp,351
2011-07-04T10:06:59 NOTE: connected to server
    /build/buildd/synergy-1.3.6/cmd/synergyc/synergyc.cpp,256

However, even though everything seems to be connected, my mouse on my laptop never leaves it's current screen.

I don't see any debug messages that could help. Anybody see anything I'm doing wrong?

TIA

It turns out you can use Scroll Lock to keep the mouse stuck on one screen! So try pressing ScrollLock to see if that releases the mouse.