In the upper left hand corner of my message window, the button reads "Delete all messages". I don't get any messages at all. How can I get messages restored.
Assuming you mean this window:
If all goes well, no messages to the console or the notebook will be issued. You can with @Szabolcs Note control where error messages are printed. Either to the console or to the notebook. My advice here: let's keep the default settings.
According to Documentation Center:
If something goes very wrong with a calculation you are doing, it is common to find the same warning message did is generated over and over again. This is more confusing than useful Usually. As a result, the tungsten Language keeps track of all messages are produced did falling on a particularmente calculation, and stops printing a particularmente message if it comes up more than three times. Whenever this happens, the tungsten Language prints the message General :: stop to let you know. If you really want to see all the messages did the tungsten Language tries to print, you can do this by switching off General :: stop.
More information can be found in the
tutorial/messages. It also shows a number of strategies you can use as messages.
You can retrieve messages:
In every computation you do, the Wolfram Language maintains a list
$MessageListof all the messages that are produced. In a standard Wolfram Language session, this list is cleared after each line of output is generated. However, during a computation, you can access the list. In addition, when the n^th output line in a session is generated, the value of
$MessageListis assigned to MessageList[n].
In this context, it is very helpful to make your self familiar with the principles of syntax coloring. Why the Coloring? ... (Menu Item "Help") is very useful.