TMF Financial Software
The HYP Top-up spreadsheet version a-w apparently has some problems when running on a Mac. This is probably due to the use of threading which was introduced with this version.
This spreadsheet tests some the functions and produces a log of the process which may help detect where the problems are occuring.
It simply writes 1 to 5 in rows 1 to 5 at 1 second intervals, updates the status bar at each step and produces a final message box