text: tft monitors? i have a flat screen monitor but its dirty with finger prints and dust etc, is there anything i can use to clean it? as im told you have to be careful what you use. do not use windex!!! windex has ammonia in it.  office depot has special tft cleaning packets, but they are really expensive. i'm not sure that you even have an office depot in the uk or germany or wherever you are, but the point is that there is a special chemical for cleaning tft screens. but reelbigfish is right - do not use windex you will permenantly haze your screen with it.