Apologies because I know this is a problem of my own making but I am really
struggling to resolve it.

On my main client PC, the Global Address List is just not available in my
Outlook Address Book. If I log on to another client then it is there. There
does not seem to be any means of adding it via the Tools - Options menu in
the Address Book or through the main Tools - Email accounts... - Add new
directory or address book menu.

Unfortunately, I think I actually removed it several months ago whilst
trying to follow a tutorial on Outlook, thinking that I do not really use the
Global Address List and I could always add it again later. Unfortunately, now
I need it I cannot remember how I removed it or how to find the tutorial I
was following.

I am running Outlook 2003 on Vista Pro and Exchange on SBS (2003?).

Any help greatly appreciated and apologies for my stupidity.

TIA.