"XInputExtension" missing on display ... misconfiguration ?

[Burkhard Kayser]

I've running the latest version of xserver ( 4.3.0.42 ) on a Win2K box with 
icewm ( 1.2.13 ) as a window manager. While running a ssh remote session with 
my linux box and starting any kde application I get error messages like 
these:

Xlib:  extension "XInputExtension" missing on display "192.168.1.11:0.0".
Failed to get list of devices
Xlib:  extension "XInputExtension" missing on display "192.168.1.11:0.0".
Failed to get list of devices
kbuildsycoca running...
kio (KService*): WARNING: Invalid Service : Applications/tfdmrremove.kdelnk
kio (KService*): WARNING: Invalid Service : Applications/tfdmrconfig.kdelnk
kio (KService*): WARNING: Invalid Service : 
--- snip ---

Is this a misconfiguration of the Win2K or the linux box ?

Thanks for your help
Burkhard