I've also seen this which implies that it is not fixable:
"After IE55 is installed, Outlook Express will send all hyperlinks to
Internet Explorer, regardless of your default browser settings.
*Outlook email messages are handled differently*, depending on the
format of the email message. If the email message is formatted using
plain or rich text, then hyperlinks are handled by the default browser,
as expected. However, *for emails formatted as HTML, hyperlinks are
ALWAYS handled by Internet Explorer*, regardless of the default browser
setting."
http://www.netcaptor.com/article/91/
dashie wrote:
> A friend has asked me if I can hekp solve this behaviour.
> I got her to switch to Firefox for browsing - a long overdue switch,
> but there ya go. Now, whenever she opens a link in an email, it still
> opens in IE.
>
> Yes, we have made FF the default browser.
>
> Any tips as to forcing XP to use FF? I have located this thread
> [http://groups.google.co.uk/group/24h...ireFox&rnum=3]
> in this group. It doesn't answer the question.
>
> Cheers in advance.
>
> John
>
> --
> Lying, the telling of beautiful untrue things, is the proper aim of
> Art. - Oscar Wilde