Where can I find an archive of comp.soft-sys.matlab?
You can read past messages and post from the MATLAB Central Newsreader (http://www.mathworks.com/matlabcentral/newsreader.html) application. If you are looking for content prior to 1997, you can check other Usenet mirrors of cssm at mathforum.org (http://mathforum.org/kb/forum.jspa?forumID=80) or google groups (http://groups.google.com/group/comp.soft-sys.matlab/).