session class bug? HELP please

[eluser]rei[/eluser]
Hi, Im experiencing a bug in session class of CI. when store data in session and echo it, it works fine in FireFox, But on all other browsers they dont output data. But when I try it in other computers it works fine. Did someone already experienced this? I already cleared cache of my browser but it still dont work. Can someone give me suggestions how to solve this problem. or is this really a bug in the session class?