Logged In: NO

As far as I can see this is caused by setting the
font color in the mouseout event of the list items:

ListItem.listevents.onmouseout = function (e) {
var o = e.getSource();
if (!o.selected && o.isMouseOver) {
o.setBgColor(o.itemStyle.bgcolor);
o.setFontColor(o.itemStyle.textNormal);
}
o.isMouseOver = false;
};

Change the line
o.setFontColor(o.itemStyle.textNormal);
to:
o.font.color =
o.itemStyle.textNormal;
and the errors are gone (on Macintosh)