Dosbox games can be a pain to get working, that's why I now use the excellent DOSBOX frontend DBGL as it makes configuring games so much easier and enables you to test various graphics & sound settings. Check it out on the Vogons forum if you haven't already. :)
https://www.vogons.org/viewtopic.php?f=31&t=12915&start=1780
Latest DBGL Version can be downloaded here: