artemisworks

I have been using Dosbox successfully for a few months to emulate some DOS games like Where In Europe is Carmen Sandiego - it has all worked well without any problems. However a few days ago, I've had issues with no sound at all from Dosbox. When I start up dosbox, I get this error message: DOSBox version 0.74-3 Copyright 2002-2019 DOSBox Team, published under GNU GPL. --- CONFIG:Loading primary settings from config file /home/jrong/.dosbox/dosbox-0.74-3.conf MIXER:Got different values from SDL: freq 44100, blocksize 512 ALSA:Can't subscribe to MIDI port (65:0) nor (17:0) MIDI:Opened device:none I have not changed the default config file. All I've done is install the usual Ubuntu updates - could that have broken something and how can I fix this? Thanks for any pointers! Arte