By default, the most-recently taken sample is displayed in an activity view. The Navigator Click Causes Refresh command from the Options menu enables you specify that you want a new sample taken and the resulting data displayed in the corresponding view when you click on an activity in the Navigator pane.
By default, data from the most-recent sample is displayed; that is, clicking the Navigator pane does not cause a new sample to be taken and the sampled data displayed.
To activate the taking of a new sample and the display of that data when an activity is clicked
Select the Navigator Click Causes Refresh command from the Options menu.
A check mark is displayed to the left of the command in the Options menu when an activity clicked in the Navigator pane causes the sampling of that activity and the display of the sampled data.
To view various statistics without causing an intermediate sample to be taken, uncheck the Navigator Click Causes Refresh command to remove the check mark displayed to the left of the command.