I know this is probably old news to some people, but for some reason my firefox 3.1.6 didnt prompt me to upgrade to 4 and 5. so when i finally upgraded today i got a bit of a shock... firefox no longer supports "arial black"!
it sounds crazy but its true. i've had a read on the net and apparently they dont recognise it as a font anymore.
a lot of my headings were done in arial black so i've hastly been going through the whole lot swapping them out for arial.
whoever made that decision at firefox must be a bit dopey. i thought arial black was quite widespread?