Hi, I am new to DosBox but I can't seem to find any help in the previous posts. In Nuclear War, the game starts up fine, but after about 3 minutes the sound cuts out. Any ideas what this could be?

I've tried setting up several different sound configs with no luck.

My System:
AMD athalon 2500
Abit NFS-2.0 mobo (on-board sound)
1GB Ram
ATI X800