cleaning lowrance

hi guys,
whats the best way to clean the screen on my new lowrance,i know spitting on it will not work.my kid tryed yesterday,now screen looks like crap.help
thanks guys

I saw this product used at a local store yesterday and it was awesome.

http://www.itainttv.com/proddetail.php?prod=KV

any kind of glass cleaner that doesn't contain ammonia, lightly spray on cloth and wipe,,,,, ammonia will mess up the screen!!!!!

Any cleaner made for Plastic lenses eye class's will work great http://www.bassboatcentral.com/boardstuff2/pimp2.gif

bass boat saver that is sold right here works great and will keep your whole boat looking great abe1 http://xs-s.com/zf/images/smile/emthup.gif