I have a link to my home page on both the url as well as the waterfall image at the top of my (test) landing page:
In IE6, none of the links ever seem to work.
Hovering on the url brings up the tool-tip in IE7, IE8, and IE9. And hovering on the waterfall correctly gives the tool-tip in IE7 - and then command-click does load the linked home page.
But no hover and no working link on the waterfall image in IE8 or IE9. This repeats consistently.
I'm using the main Browserlab interface with Mac Snow Leopard 10.6.8 and Firefox 5.0.1 to check that my site works in Windows Internet Explorer.