Problem on Updating

Member for

16 years 3 months

to update an activity 1st click the started box 

2nd put in the actual date that it started

3rd put in the remaining duration

Member for

20 years 6 months

When in Activity View, select the Activity Details at the bottom of the screen, in the General Tab, check that the % Complete Type is set to Physical not Duration.

You may need to check for all activities - you can do this by adding the % Complete Type  column to the activity view, changing one, select the ones you wish to change and then right-click and select "Fill Down"