Fortunately, I found this discussion:
https://forum.rvspace.org/t/visionfive- ... tions/1238
that explained how to get the firmware upgraded using nothing more than a serial port (YModem download). That was something I could handle. In any case, I have the latest and greatest up and running now.
Boy is the GUI slow! Moving the mouse across a pull-down menu involves a lot of lag (selected menu entries get highlighted long after the mouse moved over them). That's okay, I probably do most of my work logged in over SSH or a serial terminal anyway. Once again, this device is not ready for prime time (at least to the unwashed masses). I'm suffering though this because I'd like to explore the possibility of writing "The Art of RISC-V Assembly Language." We'll see how it goes (of course, I've got to learn RISC-V assembly first

Cheers,
Randy Hyde