i'm using Firefox 1.5 with Vista as well...not sure if its just me (or coz its firefox, or coz its Vista), but seems like there is a bug....when I click on 'announcements' the top frame with the blue heading thing, links to annoucnment, mail, discussion etc ...disappears...and then can't get anywhere.
i wonder if we all send emails to the 'feedback' thingy with "make it compatible with FIREFOX!" will there be any changes....coz i refuse to use IE other than checking that my own websites display correctly on IE!