If your desktop vertical resolution is 768 px, the Windows Taskbar can cover the bottom of the CBT and block access to the navigation buttons. If you experience this issue you will have to set the Taskbar to auto-hide. To do this:
- Right-click on the Taskbar and choose 'Properties'.
- Enable 'Auto-hide the taskbar' and click OK.
On some diplays, the CBT window may still not fit on screen and the bottom of the CBT window can be truncated. If you experience this issue try the 'Scale Media' option when running the CBT.