Performance monitoring counters missing

I have been handed a new W2K server running SQL 2000. I
fired up Performance Monitor and the SQL Server counters
are missing.
Can some one tell me why this is and how I can make them
available?
Thanks everyone!
RicOK, potentially several causes to check out:
http://support.microsoft.com/?kbid=827260
http://support.microsoft.com/?kbid=812915
http://support.microsoft.com/default.aspx?scid=kb;EN-US;227662
http://support.microsoft.com/default.aspx?scid=kb;EN-US;246328
Also, check the SQL Server service runs under a local admin account
HTH,
Paul Ibison