the roll-up of tasks does not sum up the remaining amount of work for the userstory. If you go to a specific story and look at the lower level tasks under links they are not in sync with the userstory. we are using visual studio, scrum v2 on tfs 2010.
for ex: if there are 5 task in a user story, out which 1 task hour=8, rest zero. the total task hour sum up (i.e remaining hour) as 144 in user story.
Need help/suggestion/advice