Is your issue related to this by any chance: http://www.simplemachines.org/community/index.php?topic=548896.0? If so, it is an issue with the latest patch (2.0.12) and it will be addressed in the next patch.
| seems to cause issues.|
Whenever I use the
correct your address... yourdomain.com is a different subdomain from www.yourdomain.com - regardless of how the internet treats the two...
so, set up your system so that the certificate is on the correct subdomain... and then force everyone into the subdomain.