This came up in another thread and UniRobert kindly explained how to save a picture if you use a PC. Here's how to do it if you are a Mac user:
1. Press and hold the apple key (just to the left of the space bar) and the left shift keys with two fingers of your left hand.
2. Press the '4' key and release all three keys. A 'target' cursor will replace the standard 'arrow' cursor.
3. Position the target cursor at the top left corner of the picture you want to save. Press and hold the mouse while you drag the cursor across the top of the picture you want to save. Then drag the cursor down to the bottom of the picture. The area which has turned grey will be captured (saved) when you release the mouse button.
4. The saved picture will appear on your desktop marked Picture 1. Double click on it to open it.
1. Press and hold the apple key (just to the left of the space bar) and the left shift keys with two fingers of your left hand.
2. Press the '4' key and release all three keys. A 'target' cursor will replace the standard 'arrow' cursor.
3. Position the target cursor at the top left corner of the picture you want to save. Press and hold the mouse while you drag the cursor across the top of the picture you want to save. Then drag the cursor down to the bottom of the picture. The area which has turned grey will be captured (saved) when you release the mouse button.
4. The saved picture will appear on your desktop marked Picture 1. Double click on it to open it.