This is just a quick post for anyone who runs into a problem with graphing in SPSS v18 on Mac OSX Lion.
When looking for a solution I came across a few links:
here and here.
Both looked very promising but refer to a nonexistent IBM Support page where one can download patches to remedy the issue.
Being unable to download the files from the IBM support site I found direct links to download the files I needed. I’ve posted them here in the hope of saving people some time.