I installed it to see what's up, and didn't have any problem - using Ubuntu 18.04. First time using, but I was able to easily find some game files, loaded one, and that worked fine. (I am more familiar with atari800 program - we have used that for years.)
Did you install from the Ubuntu repository? Or something else? Possibly a different version?
Details:
Code:
dmn@Roxanne:~$ apt show stella
Package: stella
Version: 5.1.1-1
Priority: optional
Section: universe/otherosfs
Origin: Ubuntu
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Debian Games Team <pkg-games-devel@lists.alioth.debian.org>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 6,746 kB
Bookmarks