If your resource or task charts begin on a date other than the date set in
your beginning milestone, then you've (most likely) created a task that has
no predecessor, or you have encountered the "phantom task box" (very rare).
Large phantom task boxes have been discovered when the LisaProject document
is copied and pasted into LisaDraw. The box has also been discovered in
LisaProject just off the edge of the schedule. Since these task boxes are
usually neither seen nor tied into the project, they take the start date as
set
by the calendar. When they do occur, there seems to be no way to eliminate
them from your LisaProject document.