Help: I can't get my trackpad to deactivate while i am typing (Nikolai Cassanova)

[nikolaigauntiet at estelacm.sld.cu]

Hi i ubuntu 13.04 installed and my computer is a lenovo ideapad s400,
while I type my trackpad is suppose to be disabled but instead it never is
and when i accidentally touch it, it ends up moving the cursor and causing
me to having many typing errors.  How can i have the trackpad disabled
automatically while I am typing?


-- 
Nikolai Gauntlet Cassanova