On this page there is a menu item Writings with a down arrow. On IE there are several submenu items. On Google Chrome, only the top level appears. This is a vanilla asp.net menu driven by web.sitemap. Thanks.
Confirmed with r36029 on Leopard.
This menu works fine with user agent changed from Safari to any other one.
The website no longer exists and it is not stored in the web archive. There is not a way to reproduce this bug using the test case.