Just want to point out another solution for this problem, posted the same thing at an another thread. Zoom out a bit, not a lot though, and press on the CTRL+Shift+i buttons. This should kinda reformat the layout of the page a bit to adjust to the zoom level, leading the navigation links to be shown properly.
I'm posting this because on my phone the links still don't show up right, so i'm guessing other members might face the problem after the fix. Also, this solution works with other websites as well (for example check this site out on your phones http://www.cinestarcinemas.com/English/Default.aspx, some elements are overlapping, but if you zoom out, they go back to their right location) so i think it's a handy tip for n900 users to know.