Session data lost

[eluser]alvaroeesti[/eluser]
session_start() on every page? but doesn't CI take care of that? I thought that was when you use PHP native sessions?

I autoload the session so, that should be all. I have included all the code I have related to session mngmt.

as you can see above I do validation, then I accept the values posted from the form and then I create an array called newdata where I store the values in the session.

Aside from that I have read that CI sessions do not work with IE. If that is so, and it is according to many developers, then how do I implement PHP native sessions? Do I need to load any library?