Bill,
Re rebooting to a different drive/volume. FWIW, I have not (yet) encountered that particular problem, but if I did, I would give DiskWarrior a go. Shouldn't hurt. Or, is that one of the Utilities you already tried?
Re Networks. When I visited my local Apple VAR last Thursday, he mentioned that they have noticed some wonky behavior there. No show stoppers, more like inconsistent/misleading data presentations, especially when the network is via WiFi, e.g., the network is active, works as designed, and the proper icons are on the desktop, but a check of Network does not always indicate that.
Don't remember and am curious, what technique did you use in installing Panthwire? I’m wondering if this is another one of those gotchas created when one uses the Upgrade install.
Harv