At the moment I can't quite figure out what's going on here, whether it's a problem with the OS or the applicaiton or fonts...
All I know is I'm getting odd results with Fireworks 2004's and ImageReady's text anti-alias modes - some very jagged edges which look awful on my 10.3 Macs at home, yet come up fine on my Jaguar Mac at work.
I haven't had time to catalogue all the variations - but in particular, the "no anti-alias" mode, and FW's "system" anti-alias look dreadful. Others (such as "crisp" or "smooth") are fine.
So initially, this is just a request for some users out there to have a play and see if you can find anything fishy...