Here are instructions for creating a screenshot on either PC or Mac: 

Creating a screenshot on a PC

1. Make sure the screen you want to capture is visible on your monitor. 
2. Press the Print Screen or Prnt Scrn key, found at the upper right of the keyboard.
3. Open a Word document.
4. Hold down the CTRL key and click the V key.  The image should appear in your document.
5. Save the document.
6. Attach the file to an email and send.

Creating a screenshot on a Mac

1. Make sure the screen you want to capture is visible on your monitor. 
2. To capture the entire desktop, press Command-Shift-3. The screen shot will be automatically saved as a file on your desktop
3. To capture a specific area that you choose, press Command-Shift-4, then select an area. The screen shot will be automatically saved as a file on your desktop
4. Attach the file to an email and send