unable to create session cookie

[eluser]WanWizard[/eluser]
The only thing I see here is the underscore in the cookie_name. Some browsers are allergic to it, I don't own a Mac, so I don't know if Safari has a problem with that as well.

Other than that, I suggest you start debugging.

As I said before, disable encryption (set sess_encrypt_cookie to FALSE), and use a tool (don't know what to use on a Mac) to monitor the HTTP headers of the request and response. And check if the browser receives the cookie. If so, what is the contents and the expiration? If not, what's in the HTTP headers?