Strictly as a pure guess -- Checking Books On Line for:
SQL Server, Wait Statistics Object at:
ms-help://MS.SQLCC.v9/MS.SQLSVR.v9.en/udb9/html/cb7f917d-4291-4115-9b78-ee7692ebbb2d.htm
Can you associate any of the data returned with any of the items contained in the Wait Statistics Object?