I'm thinking my version of VLC was out of date. It migh be ten years or more old. I did get the maps tow work, but they're jittery. I'll see if it's maybe a rogue program taking too much cpu time or something. Thanks for the help though!
OK great, that sounds promising. The jitter may have to do with your system or with the performance in the DM Helper itself. I have indeed recently found a few weaknesses in that regard, so maybe you'll also see improvements with the next release. If not, feel free to reach out and we can look into it together if you like!