I'm using house menu on a site, and it works correctly if displayed on Firefox and Safari, but on Internet Explorer when I mouse over the top level of the menu, menu opens and displays the sublevel, but as soon as the mouse leaves the text from the first level of the menu, the menu closes.

Is this a known issue? Any suggestions? I've been playing around with the css file but I can't make this work.

Please help. Thanks in advance.