Hi David, Please check to insure you are running some type of NTP on: twister.millersville.edu It seems to be drifting.....: http://my.unidata.ucar.edu/cgi-bin/rtstats/topolatency?twister.millersville.edu+atm.geo.nsf.gov+HDS Thank you, Jeff --------------------------------------------------------------------- Jeff Weber address@hidden : Unidata Program Center PH:303-497-8676 : University Corp for Atmospheric Research 3300 Mitchell Ln : http://www.unidata.ucar.edu/staff/jweber Boulder,Co 80307-3000 : ---------------------------------------------------------------------