I posted this to the forum a few days ago without any luck. This is a mission critical bug.
I use multiple cookies on my site for an enhanced user experience. For example when a user fills in a form, I set a cookie for each field.
When the user navigates to a different form on the site, the fields are then pre-populated.
In wp2.5 my cookies are deleted or lost or destroyed - in any case they are gone.
From what I can gather, cookies are handled differently in 2.5 than they have been in the past (I am upgrading from 2.0.x).
If you would like to help us, reply with your email address. I will contact you.