Version 10.37Rb03
I have chosen to display wetbulb on the main screen graph of WD which is plotted correctly, but the wetbulb read out
at the top of the graph displays the indoor temperature at the cursor position.
try a new .zip update…
That did the trick! 
Works perfectly and thanks for the great support.
Today I have no updating of the top graph readouts at the cursor position. The readouts change to the current conditions
on the minute update, but do no change as the cursor is moved. I posted this here as it seems to be a side-effect of
yesterdays zip update that I applied.