When the mouse is over an image map it will by default change into a hand cursor, usually.
If you want more advance functions out of your image map, say to open a browser window when you click on it, you can utilize the "Open Browser Window" Behavior in Dreamweaver. However, when you do this, you will notice that the cursor no longer changes when the mouse is over the image map. If you have the Link property filled out for the image map with the about Behavior, then you will notice the cursor does change, but when you click on it, it will open two windows. One for the Link property and one for the Behavior.
What I noticed, is that when the Link property is used, then the cursor will change.
So how do I put something into the Link property that won't be used when clicked on?
Here's a more detailed example: