Hi,

No that is not true.

googlebot does not pass a preferred language header and therefore will see it the same every time it crawls your site, in the default language. only users in web browsers see the labels localized based on the language preference of the browser settings, and this has no impact at all on search engines and how they index your content.

Also, it is possible to force a specific culture if you don't want it to adjust to the user browser language preference. See the bottom of this page:

http://www.mojoportal.com/localization.aspx

Hope it helps,

Joe