Hi,
I've got the same problems on my W2K box until I made the following entry in my php.ini:
[Session]
; Handler used to store/retrieve data.
session.save_handler = files
; Argument passed to save_handler. In the case of files, this is the path
; where data files are stored.
session.save_path = \Temp
; Whether to use cookies.
session.use_cookies = 1
; Name of the session (used as cookie name).
session.name = PHPSESSID
hope this will help,
roland