[whpalmer4]

What akwong said :-)

I meant to get back to you with an explanation, but didn't save a link to the discussion and it slipped out of mind until Aaron's reply made it visible again. Sorry about that, but Aaron's explanation was at least as good as mine would have been! I think the only thing I would add/clarify is that if you drag a task, milestone or group in the Gantt chart it will be set to start on a specific date. In my experience, it is best to avoid setting tasks to be scheduled on a specific date if at all possible, as doing so hinders OmniPlan's ability to suggest the best scheduling. Much better to use dependencies and resource assignments to lay out the plan organization!