take tishoue... or however you spell that darn word... a bundle of paper.... take two of those, wet one of them with warm water and then go over the top part of your screen and right after dry it out with the dry bundle.. then go over each part of your screen. The trick is basicly to try it up quickly.
okok.. I guess I'm not awake, I wrote try instead of dry and some sh+t that wasnt supposed to be there, fixed now.