Quantity of items selected not showing using Ultra Simple Paypal Shopping Cart

Hi,

I am using the 4.3.7 version of the WP Ultra Simple Paypal Shopping Cart. Upon installing the plugin, and testing it, the only glitch I am finding is that once the quantity is selected using the “Add to Cart” buttons I am able to insert, the next page is not tallying the $ amount, only the quantity.

Any help would be appreciated to get this working properly.