Hi James

Mine occurs if I log out of IE then go back in again (sometimes)
If you open the files location and look you will see the cookies with expiry
date set for some long future date.
If you double click them they will run so you can see what is inside.
However, if you then log out and back in you will still find them in the
list but if you try and run them you get a path not found error.
Does this mean they are being removed from cookie.dat?
What ever it is it is really annoying.