I was playing with the
http://www.daypilot.org/demo/Scheduler/DaysModeWeek.aspx demo.
I can see the following problem: When the height is too big (e.g. 500px in this case) the height of the actual contents is too small (around 350px) and the remaining area is filled with the background color. But the scrolling works fine.
When I set Heigth="300" everything works as expected.
I will try to fix the problem with the too big height (the height will be adjusted to be just fine). But if you see another problem I wasn't able to reproduce it - can you send me a screenshot (support@daypilot.org)?