<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><BR><DIV><DIV>On 14-Feb-06, at 7:59 PM, Ralph Lewis wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="5" style="font: 16.0px Helvetica">I regularly clean the screen on my own and customers powerbooks by dampening a soft cloth with windex and wiping the marks off. Works beautifully. The marks are skin grease left on the keys by your fingers. if left on the screen long enough they etch into the surface. but cleaning once a month or so saves the bother of a cover, and I have yet to see any damage to the screens from the cleaning. DO NOT SPRAY THE SCREEN.</FONT></P> </BLOCKQUOTE></DIV><BR><DIV><SPAN class="Apple-style-span">I use a delicate whisk, made by <I>Vileda</I> for dusting fine furniture. It works dandy fine. I hardly ever need to use water. (If I use a liquid, it's always just plain water, wiped off with <I>Kleenex </I>or something like it.)</SPAN></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV></BODY></HTML>