New sessions everytime a visitor clicks -- after moving store to root

Hi everyone,

Recently, i moved my store from a folder to the root.
There were some things i had to do such as changing the config.php files in the admin and includes folders and changing the path to the cache folder.

All of a sudden i noticed that the number of unique visitors increased dramaticly:

04/02/2010 1246 - 1540
03/02/2010 111 - 1236
02/02/2010 74 - 680
01/02/2010 90 - 1017

Theres just no way that could be real.

When i went to the who is section in admin, i noticed my own ip a lot with a new zenid / session every time.
(my own ip is true becasue i was looking through my own shop)
That means that when i go from page one to page two, i get a new session.
From page two to three a new session, three to four etc.

I havent really had any problems yet, but i think it's just odd.

It happend right after moving to the root.

Yours,
Peter de Leeuw