1. In your spreadsheet, select and copy the two-row block of cells with the
start and end node numbers for the activities.
5. Go back to your spreadsheet and paste my reply in the proper place.
If the lower box doesn't respond after you push the button, check your diagram.
Be sure you have only one start node (only one node with no arrow pointing to it)
and only one end node (only one node that has no arrow coming out of it).
If your diagram is good, verify that your array of numbers really corresponds to your diagram.
If those steps don't help, send your spreadsheet, or the numbers you pasted into Pathfind, to me at