ADE 4.5.7 shows entire chapter on one page

I have tried multiple books from overdrive. Each one displays an entire chapter per page, however, it runs down below the screen and will not scroll down.  Using the next page function jumps to the next chapter.  I have tried completely removing the software and reinstalling, but that doesn't help.  Has anyone else had this issue?  Any solutions?  I am on Windows 7.