I don’t think that Apple Lion is perfect. I have been noticing strange things in this. It seems there is a Group that the system can't recognize. The Sharing & Permissions segment shows 'Fetching…' except never really resolves this into a Group name. This is simply happening on top of one of the 2 Macs I upgraded and whilst it doesn't appear to be causing whichever issues within the context of everyday exploit, I'd like to find to the underneath of it if achievable.