So, I should conclude that no one really knows what is a reasonable clock drift on a modern PC? -- Roger Oberholtzer OPQ Systems / Ramb?ll RST Ramb?ll Sverige AB Kapellgr?nd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23