Press the Print Screen key on your keyboard. Open MSPaint. Then paste (Ctrl + V) inside MSPaint. A picture of your screen should appear. You can crop it, edit it or whatever. Then save the paint file as jpg to your desktop or another easy to find spot on your computer. Then upload it to an image host such as photobucket (you need an account to do this and the image host will provide directions on how to upload the pic). Then the image host will provide you with various ways to link it. This forum seems to prefer the IMG code for posting pics.