How is the burndown guideline calculated in greenhopper's reports?
I can't see a place for entering expected burndown hours pr day...
the chart assumes a linear progress. Say like you are havin 7 Points/Issues for a 7 day sprint, the "guidline" will reduce by 1 Story point/Issue per day. So the two metrics are number of issues/story points (depending on your configuration) and the duration of your sprints. Adjust either of the two and your chart will look different.
Hope that helps? Cheers, David