And I'm not alone... it never works!
http://lists.common-lisp.net/pipermail/slime-devel/2010-September/017763.html
I am having a problem with SLIME getting disconnected from the Lisp
process when requiring certain libraries. I am using clbuild to manage
my Lisp implementation and SLIME itself. The problem is that when I do
(require 'cl-opengl) in SLIME, I get the message "Lisp connection
closed unexpectedly: connection broken by remote peer" in the
mini-buffer area. I set swank:*log-events* to t and tried, and
unfortunately that was not terribly helpful. Here are the lines
generated by the require cl-opengl line: