After fighting with OmniWeb 5 in an effort to get bookmark syncing to work with a WebDAV server, I finally (through the help of Omni support) got everything sorted. Turns out, OmniWeb can not sync bookmarks to the root of a webdav server — you must sync to a sub-directory. Why? No idea. But since I created a dedicated DAV area on my G5 for the purpose of syncing, I had no reason to create a sub-directory. As a result, I was seeing all sorts of weird behaviour — the server specification wasn’t preserved in the Preferences, unread content was sometimes appearing in duplicate. Anyway, glad it’s all sorted now. In a few days, I’ll be posting instructions on how to setup WebDAV on MacOS X.