Hi
Had similar problems.
Make sure apache is running mod_ssl, make sure you have php-xml and php-dom installed
And the latest version of phpCAS (currently 1.0.1).
You can enable phpCAS to log errors, it is really detailed. Which gives some good help – see the CAS –docs/examples/example_simple.php file for example on enabling logging, add this to your wpcas.php file to help debug.
I beleive my CAS server is running version 3.0.1, so this lot does seem to work with that (there was some doubt at one point). Thanks to misterbisson (and the others) for their hard work.
good luck
