Thanks for working that out. You are right in that sabnzbd.ini is read first and then myusenet.xml. They are both run from the same thread so yea, one error would stop it all (how about that wonderful error catching?
).
I guess that's what I get for not updating to the newest release. I'll add a warning to the first post recommending users stay with the last version of SABnzbd until I can fix these problems.