Developer's notes for SPR 736
Paul Balm, March 9 2006

The problem is that after scheduling, from the GUI components of OSS, you
see some exceptions on the screen.
The reason is that the GUI attempts to update itself based on an incomplete
and therefore inconsistent schedule. This can cause different kinds of
exceptions, caught and logged in ViewPanel.update, but nothing is really
done with them. Perhaps the correct way is to disable updating of the GUI as
long as the schedule has not been completed.