Here is another thread with the same issue I'm having:
http://forums.omnigroup.com/showthre...7726#post27726
One interesting thought about this:
I used to ignore the start date, and just use due dates for everything.
Until those wonderful red numbers started appearing.
Now, I use the start date for everything, use the available filter, and use the due date for my hardlandscape.
That changed everything for me.
If an action has a start date & a due date and it is completed, it should move ahead to the next start date.
I can think of no examples where this would cause a problem.
I have a plethora of hard examples where completing using the due date causes problems. Let me know if you would like them listed.
Once an action or project is completed, and it has a start date and an end date, it should move forward into the future.