Cart Exists in session even after logout

[Venky]

Hi All,

     I am facing an issue with shopping cart. Once I add an item to cart, login, the item would be there in cart. Once logout, the session would be invalidate and the cart won't be there in session. Till this every thing works fine, No worries.

If I repeat same flow with registration(Add item to cart, register, log out), the cart still exists in session even after logout also.

Can any body suggests me, why this is happening?

Note: autosaveCart option is set to "Y" in my store settings.

Am stuck up here. Any help will be appreciated.

Thanks