Well, to partially answer my own question :) I was thinking that quicklisp downloaded everything it need, not realizing that GLUT is a separate library. I found a Windows binary glut32.dll here: http://www.opengl.org/resources/libraries/glut/ However - their installation instructions consist of copying the glut32.dll to C:\windows\system32. Which I did. But how do I tell Lispworks to *find* that dll? Thanks again. John C>