Cached webmail does not show message body

[ksailor]

When I search a keyword that return results in webmail page (I'm using
Yahoo webmail) of course I get "Your login session has expired" when I
click on the link to this page.
However, when I click on the "cached" link, I only get few lines at the
top of the page, but the message body itself (and the rest of the page)
is blank.
I'm using IE 7.0 and my privacy settings is Medium and Security is
Medium-high. I tried Medium and Low but with no success....
Regards