Cannot stay looged in

I don't know whether this is a Win XP problem or a BT broadband problem.

BT Broadband is my ISP and BTYahoo is my homepage. I need to Log in to this
homepage however there is a "keep me logged in" box which I have ticked
which meant that I did not need to login each started MSIE or Firefox.

This staying logged in has mysteriously stopped and despite the "keep me
signed in" being ticked the site requires logging in to.

Any ideas please?

Pod

Original post full of typos sorry

> BT Broadband is my ISP and BTYahoo is my homepage. I need to log in to
> this homepage however there is a "keep me signed in" box which I have
> ticked which meant that I did not need to log in each time I started MSIE
> or Firefox.
>
> This staying logged in has mysteriously stopped and despite the "keep me
> signed in" box being ticked the site now requires logging in to.
>
> Any ideas please?
>
> Pod
>