Scrolling Issues In Coarse And Detail XML Mapping Diagrams

I could not get to the bottom of the mapping tree and see the associated mapping links unless I collapsed most of the mapping tree and moved the scrollbars just a certain way. When I would get close to viewing the mapping links the next click on the scrollbars would move all the links way off the top of the screen. I was running the E2E XML Book Set Mixed Test script. I also installed a 5.5.2 RC4 in Windows and didn't seem to have the problem.