* David Woolley wrote:
>> >some images on the W3C site.  None of these can effectively use 
>> >q factors as the common browsers do not allow the users to configure
>> >them, relying on positional fallback instead.
>> 
>> They do for Accept-Language and there are quite a number of sites that
>
>Most servers understand q factors, but they can't be effectively used
>as most browsers don't provide any mechanism to specify them.

As for example Netscape Navigator, Mozilla, Opera, Internet Explorer and
Lynx do provide such mechanisms you have a rather interesting definition
of "most browsers".