Thanks Windy, I was able to reset all totals and start fresh. Still not sure what happened but I see timeline at bottom of WD graph shows time "skip" for lack of a better term leading up to midnight and into this morning. Displayed graph hours show: 21, 22, 203, 04, 05, 06 etc., up to current time. Obviously something went wrong between 22:00 and 03:00 with a display of "203" when 23:00 should have occured and nothing else until 04:00.Is this time taken from computer or Davis VP2? I did not see this problem during the several weeks I had a Lacrosse station hooked up. Could this have something to do with dreaded WeatherLink usb connection I have heard about? I have serial/usb adapter connection. By the way, I was logged on and computer still on this morning which was how I left it when I went to bed last night.