This is totally rediculous, but it’s a fact. Some version of Microsoft Internet Explorer do not handle empty anchors at all! Unlike Firefox, Safari and the rest, IE simply doesn’t see them, so anchors lead to nowhere (top of the page). This is just a note for you (and me) to keep your anchors filled with something, at least a whitespace character ;)
<a name="bookmark"></a>Bookmark Text <!-- Bad! --> <a name="bookmark">Bookmark Text</a> <!-- Good! -->
Keep that in mind ;) Cheers!