Has anyone ever heard of Cold Clustering and if so can someone please explain to me what it is. Or point me in the direction of what it is. Mark Shevill IMG Messaging Technical Lead Shell Information Technology International Limited Rowlandsway, Wythenshawe, Manchester M22 5SB, United Kingdom Tel: +44 161 435 8709 Fax: +44 161 933 3502 Other Tel: +44 7932 625510 Email: Mark.Shevill@xxxxxxxxx Internet: http://www.shell.com <http://www.shell.com/>