... I know the data is there because I saw them in the browse menu, the plot screen and the strip charts. ....
The only thing I can think of is when they transfered all the data from my old pc to this one some how that month didn't make it. All the other data back to 2003 is all there. ....
Ah, I was thinking by transfer you meant from the weather station to the computer to the Weatherlink files rather than from the old computer to the new computer.
I think I'm on the same page as you now.
Unless your a computer geek and looking for fun,

might see if the computer shop will burn the WeatherLink file from the old drive to a DVD or CD for you. Then you would not need to haul the new computer back to them or spend time hooking up the drive to copy it yourself.