Using Viewports in AutoCAD

<body> <center>Sorry you do not have frames enabled. Here is the link of the tutorial:<br> <a href="http://www.computersight.com/Software/AutoCAD/AutoCAD-Tutorial-13-Viewports.40938">http://www.computersight.com/Software/AutoCAD/AutoCAD-Tutorial-13-Viewports.40938</a></center> </body>