That's rather an old version of spectre, and is using the old front end. A lot of improvements have been made since then, which particularly will affect altergroups.
Ideally you should use a more recent spectre version (spectre is now shipped in a stream called MMSIM - for example MMSIM71).
If however you can't use that, try putting:
Code:envSetVal("spectre.envOpts" "useAltergroup" 'boolean nil)
at the beginning of your OCEAN script - this tells the corners tool not to take advantage of spectre's altergroup mechanism, but instead run separate simulations for each corner.
Regards,
Andrew.