force meta description in search results

[Steven_D]

Anyone know how to force search engines to display your description meta tag in the search results rather than the section of the text that matched the customers query.

Eg if my meta description is
"My site is cool, visit it"

but on my site it has the text

"This is a cool site"

if a customer searches

"This is a cool site" that is displayed rather than "My site is cool, visit it"

any help appreciated. Thanks