Snow Leopard Services on Right Click

Was reading about this. I want to right click on a file and open as a New email with that file as an attachment. I understand with Snow Leopard its now easy with "Services". When I click on a file and go to Finder>Services>New Email with Attachment, I can do what I want. I read that the same will appear on right clicking on a file. But it doesn't on my Computer.

Anyone have an idea why I don't see it on my right click menu? Is there any setting where I need to add this service on right click?

Never mind ... resolved it. Old trick. I went to service preference. Unchecked the option for "New Email with Attachment" closed it and again opened it and checked it back. Strange !!! but worked ...