I had this problem myself, Ubuntu 9.10 64-bit, DOSBox 0.73, and Under a Killing Moon. Found an answer here: https://bugs.launchpad.net/ubuntu/+source/dosbox/+bug/429373 Long story short, set playback rate to 44100 and buffer to 50 (or even 100) in your DOSBox config - it worked for me. Linux may not …