Guest Jon's post (the second in the thread) displayed correctly for me, whereas Jack Campin's displayed none of the symbols correctly. This is on a Mac running OSX (with most of the latest updates) and using Safari as the browser.

Using JiK's terminology,
1. Where you are (to allow a guess about how your machine is regionalized)
Australia
2. The browser encoding you use (UTF-8 usually?)
Western (ISO Latin 1)
3. The "Language" set on your browzer.
none specified on Safari but Australian defaults on the Mac System
4. The font used on your browser
Standard Font Times 16
5. The "Regional setting" you're using in Control Panel
Australian

Hope this helps.

Cheers, Rowan