Every once in a while my website will have issues when a customer adds product to the shopping cart it will show it was added, but then if they go to the cart it says it's empty. Then the customer can try to add product again, it will show 2 items in cart, but when you click on the shopping cart, it says it's empty. I've been able to cure this by clearing the cache under maintenence. This fixes the issue for a while, but then it reoccures.   Anyone know why this is happening?   Running lates