If you click on a "postscript" or "dvi" file format, you will need a special viewer. In the case of a postscript file, you will use something called "ghostview"; in the case of a dvi file, you use something called "xdvi". Both are supported on any Unix account on the machine ``stein''.
If you are on an X-term and click on an item which is indicated to be a "...dvi file" or "...postscript file" you will need to do a little extra work to view it. I will illustrate how to proceed by way of an example:
Click on "Syllabus(dvi)". A window will pop up on your terminal asking you if you want to save this file to your account; it will specify a default filename (in this case, "out464.dvi"). Click "OK" in the window. Depending on the file size, it takes a few seconds for this to load. Now type " xdvi out464.dvi[return]" to see the file. You can then view or print following the menu items (and rules about printing at your user site)