I tried something today and determined the problem - the file "OpenJazz" in /opt/openjazz should be spelled "openjazz" (case sensitive). The game works after this change is applied (note that the data files within the game directory may need to be lowercase as well - the "unzip -LL <filename>" command might be the quickest way to ensure this situation if you've got the data files on the device within a .ZIP file).

The sequence of shell commands required to make this change is as follows (although you may choose to wait until the maintainer of the package performs an update that remedies the issue):

sudo gainroot
cd /opt/openjazz
mv OpenJazz openjazz