Loguitech Caps lock gadget not working.

[yorkshire lass]

All of a sudden the Logitech Caps lock gadget for my my vista( 32 bit ) sidebar doesn't work at all , no lights come on for caps/numbers /scroll locks. The sound/vision for set point works OK but not on the side bar. I have tried downloading it directly from Logitech and also from Windows sidebar gadgets but no avail. I have checked that my setpoint is up to date etc but still it won't work, Grateful for any help and suggestions.