Sessions not working on Blackberry mobile browser

[eluser]Jonathon Hill[/eluser]
Help!

I have a CI mobile webapp using the Michael Wale's Erkanaauth authentication library. Everything was working fine on our development server, but I just set up a production box and now I can't log in.

The user is being authenticated fine, but somehow the CI sessions library isn't working right with the Blackberry browser. I've cleared the cache and cookies but that does not help.

As I said, this was working with the Blackberry until I switched servers. The dev server was using http, the new server is using https. It works fine with desktop browsers as well.

I'm stumped. Can anyone help?

Update: I have sess_match_useragent and sess_match_ip set to false in config.php.