Hello WCSally, and welcome! 

If you want to do a screenshot, this is how I usually do it, very easy...just get your screen setup with what you want to snap a shot of, then hit your "print screen" button on your PC keyboard (usually found to the right of the F12 key). Once you've done that, the screen shot will be on your clipboard, just open any photo editor program you have and go to Edit/Paste as new Image. Your screenshot should now be visible in your photo program, do a "save as" give it a name, and you're all set! 

(btw, you might want to edit out any personal information that might be visible in your final pic, like serial numbers, etc...wouldn't want that posted for public view.)

HTH!

Musikman