Is there anything that can be done on the AOA150 to make the trackpad smoother to use? Since it's just the same as the plastic case, if you have even the [i]slightest[/i] amount of moisture on your fingertip, your finger won't glide at all!!! Is there anything I can apply to it to make it more useful like other trackpads? This thing is infuriating to use because my finger keeps hopping and skipping around no matter how many times I wipe the pad and finger in a futile attempt to make it glide better.