and other Powerbooks.
I don't know of any way to successfully remove them without damaging the screen
I just acquired a 1 GHz 15" Powerbook Ti. It is in good cosmetic condition except for a few dark marks from the keyboard on the screen. I can feel them with a fingernail, so I know they are residue from the keys.
Is there any way these can be removed without damaging the screen? I have had very good results using toothpaste and a damp cloth on other surfaces, but I am leery of using even a very mild abrasive on the screen. I have even used newsprint on some sensitive surfaces with good results but if you make an error on the screen, it is either permanent or expensive. I suppose I could try in a corner but I know there are anti-glare coatings on the screens and I could make things worse. This is most noticeable when there is a light-colored area displayed right under the marks.
Any ideas, experience, more warnings?