keyboard problems

[Thermite Paste]

i have a lighted keyboard i got from xoxide.com, and the backlite function is screwed up. every time i hit the button to light it up, the keyboard lights up, but none of the keys will work. is it a defective keyboard? or is something wrong with my system?

 

[Vertigo Acid]

Maybe not enough power being supplied to the connector? Otherwise, i'd say defective