Not all of the program window is visible.

[Smee]

If your display resolution is too small you will not be able to see all of the professor teaches main dialog. You need to ensure your display resolution is set to a minimum of 1024x768 in order to see the entire window. You can check this as follows:

VISTA:

• Right click the desktop
  
• Click on the "Personalise" option.
  
• Click on "Display Settings"
  
• Use the "Resolution" slider to set the resolution.
  
• Click "OK"
  

XP:

• Right click the desktop
  
• Click on "Properties"
  
• Select the "Settings" tab.
  
• Use the "Screen Resolution" slider to set the resolution.
  
• Click "OK"