Hello again.
To expand upon this episode,which is now fixed, I'll try a rather detailed response.
About the only parts of WL I use are "Browse the rain database" and "Browse the station data". About a week ago, I noticed the Browse station data window was not functioning properly. I then checked the rain database and found 2 future years listed which I deleted from the record. Next I tried the bulletin, which I virtually never use, and it seemed OK. Next I tried the strip charts which crashed WL. At this point, I entertained the idea of running chkdsk but decided to post on this forum first. Shortly after my post, Bushman suggested running chkdsk which I did but it was not helpful.
A couple of hours later I rechecked this thread and found dalecoy's post, which was the first action I took when the problem arose, and johnd's post which provided a solution which had been covered in previous posts which, since I have read every post on this board, I had read but did not recall.
One last thing that may be of some interest. I renamed the datasets/datalists files as suggested and after the program recreated working files and the problems went away, I opened each ".old" file in notepad and they were empty but did not show as 0 length files. Who knows.
At this point I acknowledged each post with the result.
Again, thank you all.
George