[xsl] Issue with xsl:sort - does not differ between 'V' and ''W'?

[Jon Bråten <valemon@xxxxxxxxx>]

Hi all,
I am trying to sort a node-set by an element that contains lastnames -
but it seems the sort algorithm does not differ between 'V' and 'W'.

The code is simple enough:
<xsl:sort select="LAST_NAME" data-type="text" lang="no" />
I have tried both with and without the lang="no" property.

The result is a list like the following:
"Wabbah"
"Vebah"
"Weccer"
"Vubbih"

So, the point is it seems the algorithm regards 'V' and 'W' as the
same thing, but correctly sorts on the following characters. Any ideas
or input on this? I have checked around, and I cant find anything
implying that this is by design - so I'm left wondering what I'm doing
wrong here? The output is apparently sorted correct with regard to
nodes not starting with V/W.

Regards,
Jon