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Yes! NEVER USE WINDOW/GLASS CLEANER, on your Apple Display. You can cause the screen to warp and short out.

TEG
 
if you're using an LCD display, yes water is okay; they also make LCD cleaning solutions which probably do a better job... for CRT, you can generally use windex sprayed on the towel, not the screen (if it drips down the screen, it could go behind the plastic... 🙁)

if you can, i'd go to compusa or bestbuy or somewhere and buy some screen cleaner for whatever monitor you have... the LCD cleaner conditions the plastic i think, and the CRT cleaner is designed not to corrode the anti-glare coating.

pnw
 
I have always used water on a soft tissue to clean my iBook's screen. However, mine is 4 months old, so i cant guarantee sucess.
 
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