Thank you, Banhien. I guess that I've seen those parts before in other parts lists. The parts adviser suggested the LCD screen, and the technical supervisor suggested the touchpad cover, but these aren't what I need. As you say, it may be that I have to buy a whole assembly, maybe the bezel with glass attached, but I can't find it anywhere, and noody seems to have pictures of the assembly that would help them understand. The repair manual doesn't even show/list the part. Anyway, thanks for the pointer!
--- Mark.