DB Session Problem: muliple sessions for each user

[eluser]Stoppy[/eluser]
Hi,
I'm bulding a shopping cart using the cart library and using FreakAuth library to manage users.

I have to store (and prefer) the sessions using mysql (freakAuth needs it) but I have a problem, for each page and for each page reload, codeigniter goes to create 2 records in ci_sessions

This is what appens: SCREENSHOT HERE

In this way for me is impossible to track users and store datas.

If I add something to the cart, I see it using phpmysqladmin, but I am not able to get it.

What could it be?
Thanks

P.s. This is my first project in CI.