|I couldn't find anything on the ME machine that would give a mystery/sherlock holmes theme. I browsed the ME disk and couldn't find anything that would add that affect. I'm thinking that particular theme isn't an original part of ME and must have been added from a third party source. I found this|
(down toward the bottom) 'The lost files of sherlock holmes' described as
". . .a desktop theme based on the show "The Lost Files of Sherlock Holmes: The Case of Rose Tattoo". It includes wallpaper, icons, cursors, animated cursors, and WAV sounds."
Is it something like that you're looking for? If that's not it then maybe if you could describe it more I might be able to find it.