No, but I'd guess that the friction of the mouse is wearing the varnish.
Maybe a very light polishing with some wet 400 or finer sandpaper will
restore the shine. Or a tiny bit of auto body rubbing compound.
Jim Nichols wrote:
> A couple of months ago, when my old roller-ball mouse was suffering
> from old age, I bought a Microsoft optical mouse. Since it was
> touted to work on any surface, I tossed my mouse pad and have been
> using it on the lacquered wood desk top. Recently, I have noted that
> the area where the mouse resides is covered with millimeter-sized
> lighter spots.
> Have any of you seen similar signs of the mouse optical tracking
> system causing desk top marring?
> Jim Nichols Tullahoma, TN USA
Themed Olympus Photo Exhibition: http://www.tope.nl/