Need help with scroll down problem in C++ dll

When I add this dayview control to a vb project and run it, the scroll down button doesn't work. The scroll up works, as well as clicking below the scroll bar, but when you click on the scroll down button, the screen just flickers and the window doesn't change.

I usually program in VB, so I am kinda lost trying to figure this one out.

This is a really nice control and I need some help finding where the code is that controls the scrolling DOWN, and updating of the interface when scroll down button is pressed.
If I could find the code that updates the display when the area below the scroll bar is clicked, I could just call that in the coding for the scroll down button.

If you have a fix, or any suggestions, it will be greatly appreciated.

I've included the c++ source, and a vb sample. The .dll was too big to attach, but you can compile the .dll with rel min dependency. Or I can email it you seperatly.

Chris.