OK that was it!
I saw this in the logs:
php: rc.bootup: The command '/usr/local/sbin/unbound -c /var/unbound/unbound.conf' returned exit code '1', the output was '/var/unbound/unbound.conf:88: error: cannot open include file '/var/unbound/pfb_dnsbl.conf': No such file or directory read /var/unbound/unbound.conf failed: 1 errors in configuration file [1484921851] unbound[37111:0] fatal error: Could not read config file: /var/unbound/unbound.conf'
Sorry for not seeing it before.
I saw I had something in the advanced box that matched the log:
server:include: /var/unbound/pfg_dnsbl.conf
I didn't see that file on the file system, so I removed it from the setup window and now it is working!
I've no idea what that file is, why it was setup that way, or why things changed, but removing it lets the resolver run.
I guess that file "used" to exist, but no longer does.
EDIT: I did add the pfBlockerNG packages several months ago. I don't remember making the change to the resolver, and looked back at the how to I used to set it up and it doesn't talk about making the change. I wonder if they are related, due to the name of the file. I've disable the package as well.
thanks for all the help,
david