Gridlines showing on top of pictures

Question:

I am trying to make my schedule look better. I added some graphics but the horizontal lines are showing up on top of the picture. Is there anything I can do about this?

Answer:

Pictures in Milestones can be set to show "on top" or in the background.

Show a picture "on top":

Choose the Arrow tool.
Click the picture to select it.
On the toolbar, Show on Top.

BEFORE: (Picture in background)

AFTER: (Picture on top)