RE: using every inside a predicate

I have updated my variable definition to;

> 	<xsl:variable name="ubiquitous-names"
> 			  select="distinct-values(sections/section/name
> 			  [not(contains(., 'new entry'))]
> 			  [every $s in ancestor::sections/section satisfies
$s/name = .])" />

Reading up on distinct-values, it says that I am to assume the default
collation as case-blind, but after testing, this is proving not to be the
case. Is there any way I can force a lower case comparision?

Thanks.

--
Kevin