If I may follow up to my own post here, I've done some experiments, and made some discoveries.
I first installed "DMD Core Utilities 2.0". The demo programs all work beautifully in stand-alone mode (not running under Layers). But when I try to fire up /usr/dmd/bin/layers, the 3B2 crashes _hard_. It does not like the version of 'layers' installed by DMD Core. So, I installed "AT&T Windowing Utilities" from SVR3.1, and confirmed that both of them can live together side-by-side, since they write their files to different locations. I was able to run /usr/bin/layers without any problem. All of the programs, utilities, and demos installed by "DMD Core Utilities 2.0" function fine under the version of layers installed by "AT&T Windowing Utilities". See: http://imgur.com/QlNOIBf So, that's my current setup. I run /usr/bin/layers, and then run the apps from /usr/dmd/bin -Seth
