Thanks a lot for your replies.
I can't get the problem out of the world. I tried a fresh install but still – no sorting. I'm running on OS X Server 10.4.8, Apache 1.33, PHP 5.2, MySQL 4
Has anybody else experienced this? Very strange....

Tanks, Michael

   


Just a though, have you customized any of the CSS, or are you testing on
the default? I've adjusted the columns before and ruined it's click-ability.

Nope, everything default, I didn't change anything.