Hi,
Something very strange occured. At my default configuration i have found out that i could not remove products from my cart. When i pressed the x(delete) button from the checkout at frontend, the product wasn't removed and the purchase was completed instead. I changed the joomla session handler from database to none and then the problem was fixed. Everything was fine for quite some time until now that no account can login. If i change the session handler back to database the login problem is fixed but the remove prouct problem comes back. Any suggestions? Thank you
*EDIT*
The remove product malfunction seems to happen if the user adds a product in cart and then he logs out. When he logs in again the produxt is in the cart and he can't remove it. If he ,however, adds another product in the cart then the remove button works!