I just played a bit of the starter dungeon. If you aren't getting sound at first, change the IRQ settings and test. My settings were Soundblaster Pro then 220, 1, and 7
For MIDI, I chose MPU-401.
I am not certain if Arena is worth the effort to get it running- of course, I never played the original (unlike Daggerfall).
--------------------
The dreams down here aren't broken, nah, they're walkin' with a limp...