OK I'll give that a try, thanks Callum.  I can't actually say if there is a correlation between when I change something and Connected/Not Connected because I often forget to change things before Connecting so it could be both or either!  But if I do want to change something then I should disconnect, make the change, re-save the spreadsheet and then re-Connect … yes?   
 
 
I also sometimes get a VBA error …
DataCaptureVBError01.JPG
DataCaptureVBError02.JPG
After these errors the only way to close the spreadsheet is to use Task Manager.  To get these screen pics I set everything up as suggested before Connecting the spreadsheet.  I Connected the spreadsheet in Guardian and then selected the Data sheet for the event.  All was OK until I clicked the tab in the spreadsheet to switch the sheet view from Data to BetAngel (or it could have been the other way around).  Anyway, I then get the error message and on selecting Debug I always get the same line indicated.  (If I select End in the error message the message box just keeps repeating.)
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