laptop problem

Random keys on my laptop quit working intermittently, any suggestions?

It started on L and O, now those are working fine, and its moved on to two different keys.

 

2x4.

(kidding, Clean your keyboard out)

 

2 x 4 sounds good, and did that. didn't make a bit of difference.

 

4x8.


It's beyond me then =\

 

Thanks Robert.