Although I have:
DayPilotCalendar1.BusinessBeginsHour = 6
DayPilotCalendar1.BusinessEndsHour = 8
the calendar displays 9-5 with a scroll bar that does not move (fills the scroll bar area).
I have the same problem in both day and week view. Reverted to build 6.4.2276 to fix the issue.
Unfortunately, I'm not able to reproduce the issue (IE9, FF6).
1. What browser are you using?
2. Do you set DayBeginsHour or DayEndsHour?
It seems that this behavior is caused by the newly introduced HideFreeCells property which was not accessible and was always set to true.
HideFreeCells="true" hides non-business hours (outside of BusinessBeginsHour - BusinessEndsHour range) if there are no events.
This property is now accessible in build 6.6.2342 - see also http://www.daypilot.org/daypilot-pro-6-6.html. The default value is set to false.
Please let me know if the problem persists with the latest build.