Okay, so here's the sitch:

I am running Mac OS X (v10.3.9) on a 700 MHz PowerPC G3 with 512 MB SDRAM. I downloaded DOSBox (v.72) and followed the instructions, so it now resides in my applications folder. That part was easy--BUT-- when ever I try to start it, I get the following:

"The application DOSBox has unexpectedly quit.

The system and other applications have not been affected.

Would you like to submit a bug report to Apple?"

That's all, no black box, nothing (well actually, the black box DID appear ONCE, but literally for a fraction of a second). So I checked the README, and it says:

"Q: DOSBox crashes on startup and I'm running arts.
A: This isn't really a DOSBox problem, but the solution is to set the
environment variable SDL_AUDIODRIVER to alsa or oss."

First off, I don't know what "arts" is, but I don't think I'm running it. Secondly, what is the the "environment variable SDL_AUDIODRIVER" and how and where do I change it to "alsa or oss?"

Any and all help in remedying my problem and helping me get DOSBox running would be greatly appreciated.