My new Toshiba Satellite 550t-b number pad does not work

Hi,

I've only had my new Toshiba laptop a few weeks but the number pad has suddenly stopped working...! The number keys on the number pad do light up but none of the numbers '0-9' nor symbols '. * - / +' appear when I type them...?

Please can anyone be kind enough to help me?

I have tried the 'refresh' the system procedure as listed in the system 'recovery' section, but it didn't work. I don't really want to reset the laptop to 'default/ factory settings' if possible!

Thanks!

:D