What is the best (and safest) way to clean the Aspire One screen? My wife sneezed last night and now I can see dots of some substance all over the screen. They don't wipe off using a micro fiber cloth. Any mild window or surface cleaners you can suggest? I used to clean my old laptop screen with Glass Plus lightly sprayed on the cloth (NEVER the screen) first and then then gentle rubbing. Any suggestions that anyone has tried with success and no damage? Thanks.