Logitech Wireless Keyboard and Calculator

I have a Logitech Wireless Desktop Pro keyboard. Each time I press the Logitech Button on the top right of the num-pad, it open up Calcualtor. The Calculator also open up when I type fast in any application. Is there a way to disable this button? Also downloaded the newest software from Logitech but it won't install on Windows XP. I don't have this problem when I use the keyboard with Windows 2000. The problem only occur with SP2. When I used to have Windows XP with SP1, I don't have this problem.

 

Please post the exact device you have. Otherwise it is impossible to search for problems & solutions that might apply to your system.

 

got this fixed by installing old software and make the button to pull a blank menu.

Thanks