I have the same problem.
Just never got around to doing anything about it.
Mine is not that obvious (except to me).
I've thought about using a magic marker or something that will stain the aluminum black. It won't be an exact match but would make the blemish that much less obvious.
Here are pictures of my damage.
Is this what you are talking about?
(You can click on the thumbnail for a larger picture)
<A HREF="http://64.251.203.44/images/acid/acid-1.jpg">

</A>
<A HREF="http://64.251.203.44/images/acid/acid-2.jpg">

</A>
Stan
[ This message was edited by: SWare on 2006-07-25 11:20 ]