In prior years, the ‘mouse settings’ option in old classic Quake never worked properly on the old OS 9 machines in my Mac LAN. Could never totally figure out what the issue was, and frankly did not feel like trying to find out (software conflicts are very difficult to fix, especially on old systems – and time is a limit for now too).
Now the odd thing from last year is I found 2 machines where the ‘mouse settings’ work, on a Blue & White unit (or G4 – I forget), and a later model iMac (Indigo).
I’ve managed to copy to entire system on the Indigo iMac to a new Snow iMac model I picked up late last year. It is working good so far, and all I need to do is test it on the LAN. As for older models, I fired up my original Bondi Blue iMac last night, and for some reason beyond me, the mouse settings work!? I don’t recall this unit being functional in that capacity at all, but I’m not complaining at all (in other words – Thanks God). Now I can clone this system over to my other older tray-loading iMacs so the mouse settings won’t crash the system like they normally did (you’d get an out of memory error, which you could not get out of, forcing a reboot). If this works, and it should, I will have ‘mouse settings’ working on all of my iMacs! Fingers crossed on this one. 
More as I get this stuff done… Cloning is not a quick process (plus I have to repair the desktop database every time I clone OS 9 too – not sure why – but guessing it is because each machine has a different name).
(On a quick side note – the Dalmation iMac with the busted bezel is out – maybe can fix it for next year)
If this all goes as planned, there should be 9 (possibly more) iMacs this year for the Mac Quake LAN. It will be awesome!