Spurious output overlaps date field

I am getting spurious text boxes that overlap the date field, in both the on-screen project and the printed output. How do I remove this?[Gantt.pdf|attachment]

Switch off “show milestones in the timeline” option in the Gantt chart settings.

Thanks for this direction. Your suggestion helped but there still was some text remaining. Then I discovered the “Show in timeline” check box in each task and found that a couple of those were checked. Unchecking those cleaned it up. I appreciate your help.