Check the crash log in user/library/logs/crash reporter
it will tell you why quake3 keeps crashing. Its probly a memory thing, or an install problem. You might want to (after unistalling) take the PAK0.PAK3 file, copy it where you want it. Then run the installer from the lastest update.
I have the linux quake3 cd and this is how i install it on macOSX. Thats the beauty of those .PAK file you can move them from linux, to win, to mac as long as you have the right updater.
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it will tell you why quake3 keeps crashing. Its probly a memory thing, or an install problem. You might want to (after unistalling) take the PAK0.PAK3 file, copy it where you want it. Then run the installer from the lastest update.
I have the linux quake3 cd and this is how i install it on macOSX. Thats the beauty of those .PAK file you can move them from linux, to win, to mac as long as you have the right updater.