Someone has asked how I do the screenshots in these posts.  These are the images of the menus and toolbars you see on a computer screen.  Even if you are not planning to write computer manuals, these tools can be useful when you are trying to demonstrate a problem with an IT technician.  Instructions are as follows:

PC

You can simply press the key to the right of the keyboard the says Print Screen or Prt Scr.  This will give a shot of the entire screen which you can then edit later in Word or in an image editing programme.  See here for instructions on how to edit images in Word.

If you hold your finger down on the Alt key when you press Print Screen you will get a screen shot of just the active window.  This is very useful and can save valuable editing time.

You can then go to your document or email, select paste or use Ctrl-V on the keyboard and the window will be pasted in to the right place.

MAC

You have a lot more options with a MAC:

Hold down Command-Shift-Option- to get a screenshot of full screen placed as file on desktop. 

Hold down Command-Shift-Space Bar-4, then drag and drop mouse over selected area: Screenshot of selected area is saved as a file on the desktop.

Hold down Command-Shift-4, then press the space bar, then click a window.   A screenshot of selected window placed as file on desktop.

To have the images copied to the clipboard follow the above but replace the shift key with the control key.