The size, content and appearance of these boxes will vary considerably depending on the context. These boxes may be moved anywhere on the page. Dismiss using the x in the control box.
Mostly they are accessed using help buttons (with ?) on forms or on the Toolbar and contain context sensitive help on the form or page you are currently using. This is an abbreviated form of the information in this help. The exception is with Species Plates when they are used to provide information on the species via the information button (with book logo).