First, this may just be an issue with my firewall. I've used it for testing for a long time; I need to just back it up and rebuild from scratch.
But, since upgrading to 104, I've had two instances when dnsmasq just stopped. I was part of the testing when this happened a while ago, so I recognize the situation and fix it pretty fast (log into firewall, /etc/init.d/dnsmasq start).
As I said, this may not really be an issue with anything other than an firewall that has been used for testing for a while. But I thought I'd mention it and see if anyone else has a similar problem.
Next time it happens, I'll get a log dump. Forgot to do it before.
Rod