Could you have the navigation menus at this site autohide when mouse leaves them?
Or even better have them only to drop down on mouse click?
I often happen to move my cursor over them, obscuring what I'm currently reading and I have to click somewhere else on the page to hide them.
Quite irritating I must say...

Firefox 3.0.10 on Ubuntu 9.10, 64-bit. But it has been this way as long as I've visited this forum, so at least since 8.04.