Can't switch to another languge on client side

Hello! I am a russian user. On the client side i can't switch language from english to russian for input something from keyboard. Is this bug or feature? :-)

UPD: Synergy 1.4.3

Server - Win 7 Home Premium, client - Win 7 Home Basic.
Method for switching - embeded in Windows. It's key combination "Alt-Shift", "Ctrl-Shift" or something else. I use Alt-Shift to switch between Eng-Rus.
Config:

section: screens
    inovikov-pc:
        halfDuplexCapsLock = false
        halfDuplexNumLock = false
        halfDuplexScrollLock = false
        xtestIsXineramaUnaware = false
        switchCorners = none 
        switchCornerSize = 0
    inovikov-laptop:
        halfDuplexCapsLock = false
        halfDuplexNumLock = false
        halfDuplexScrollLock = false
        xtestIsXineramaUnaware = false
        switchCorners = none 
        switchCornerSize = 0
end
section: aliases
end
section: links
    inovikov-pc:
        right = inovikov-laptop
    inovikov-laptop:
        left = inovikov-pc
end
section: options
    relativeMouseMoves = false
    screenSaverSync = true
    win32KeepForeground = false
    switchCorners = none 
    switchCornerSize = 0
end