I just spilled a can of grape soda on my keyboard, and i just took it apart and let all the parts soak in rubbing alcohol. The keys pop off real easy, and then I used an exacto knife to take off the little white parts underneath (this is usually where the sticking is occuring at the hinge). Let all the parts soak really good, let them dry, and assemble together. It is a little time consuming, but your keyboard will be back like new when you are done.