Incidently, I think everybody can enable chat logging - it's not a particular ability the staff avatars have got. Go to Preferences>Communications I think and tick the boxes...
I did not know that. I'm finding myself learning new things about SL every day.
If you are logging chat then it is essential that you make sure that everyone knows this - it is very definitely against Linden Labs rules to log chat without having the permission of the people involved.
I did howether know that believe it or not.
(just installing new second life V now, might help with my crash problems)