Hi
Try the version at http://github.com/3b/cl-opengl
I'm using this github branch you pointed me to and it's been working very well so far, so thanks for going to effort to keep the package updated for Snow Leopard. A minor point I've come across is that get-tex-image doesn't seem to be external, is there any particular reason for this / is there some interface I should be accessing it through? I couldn't find one with a quick bit of grepping..
Cheers,
Malcolm