Session problems have nothing to do with Simple Suggest

The problem with the shopping cart, one user described, caused not of problems with the ajax simple suggest for osCommerce, it was how I guessed a generally session problem, the user answered in the oscommerce forum:

I figure why my search field throw the products from the basket out, because I hadn't have tep_hide_session_id (); Thanks for your help (if you have another suggestion feel free to say) BR J

some other usefull tipps to fix the session problem can be found in this thread:

http://forums.oscommerce.com/index.php?showtopic=330479&hl

Session problems

A user told me this:

when I put something in the cart and go to search, enter something in the search field and click search button, find me a product that I have set but all disappeared from the shopping cart.

After I asked some questions he told me his links look like this:

http://localhost/shop/shopping_cart.php?osCsid=f39597ef4bc176592687ea0d5f2d13bb

May he has a generally session problem