monitor user activity and bandwidth

Hi,
I am running perfomance monitor and I noticed that my network bandwidth is
off the chart.
How can I write a SQL query to find out who and which database is using all
the bandwidth on the SQL Server?
Thanks in advance.You may want to start here;
821914 HOW TO: Troubleshoot Application Performance with SQL Server 2000
http://support.microsoft.com/?id=821914
Thanks,
Kevin McDonnell
Microsoft Corporation
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