Ok..... here goes.
Firstly, I'm no longer technically a Mac users.... lol! I converted to the Dark Side a few months ago. But I still remember how to use Macs, so I'll try and help!

With the Live Chat, I never had any problems at all, the few times I used it. I used Netscape Communicator with no trouble. However, I preferred to use Ircle because it was a nicer interface.
http://www.ircle.com
I think. You'll be able to download a demo version that quits after half an hour and drives you up the wall, but from memory it's not too expensive.

Hope that helps!

CasperTG
PS the games are better on Windows....

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You know, Blackadder, for me socks are like sex. Tons of it about and I never seem to get any.

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https://imgur.com/a/80hiRdm