helping a new Ubuntu user

[norman]

My brother is in the process of converting from Windows to Ubuntu and is
quite computerate. However, I am expected to be the fount of all
knowledge about Ubuntu whereas I am really pretty ignorant. The
difficulty is that we are several hundred kilometres apart and sometimes
it is quite difficult to visualise what he is seeing on his monitor from
his descriptions. It would be most useful if I were able to see his
monitor screen and I wondered if this were possible for a relative
rookie like me.

There must be lots of you who have had similar problems and I would
welcome any useful advice you can pass to me. Who knows, if I am
successful in converting my brother to Ubuntu others in the family may
follow.

Norman