Thank you for your advise unfortunately Iām still getting the error message. Once I imported the file I could see the graph in the background but the error screen was still displayed infront of it. I also tried deleting the lastest.ini file still with not success.
import the the log file their were three diffrent log files
102003lg.txt
102003lg2.txt
102003lgsun.txt
I imported 102003lg.txt, is this the correct log file. I now have my data back but if I go to look at averages and extremes for the month it starts at may 2002.
WD is now showing the current months data when I open the averages and extremes for the month. Unfortunatley I have a new problem. The original WD version I have I buy with my weather station and is a registered copy. When I had the problem with WD I reinstalled the original to fix some of the corupted files. I have now tried to install the lastest version of WD but it will not recognise the registration of the previous version.