Hello,

I had a customer trying to purchase 3 of something I only had one of. They could not check out but the usual shopping cart message of...

"Products marked with *** are out of stock or there are not enough in stock to fill your order. Please change the quantity of products marked with (***). Thank you"

...does not appear, instead just refreshing the shopping cart.

I have my admin/config/stock settings as so...

Check stock level true
Subtract stock true Info
Allow Checkout false Info
Mark product out of stock *** Info
Stock Re-order level 5 Info
Show available stock level in cart when less than order true Info
Display Images in Admin false Info
Products status in Catalog when out of stock should be set to 1 Info
Show Sold Out Image in place of Add to Cart 1 Info
Product Quantity Decimals 0 Info
Show Shopping Cart - Delete Checkboxes or Delete Button 3 Info
Show Shopping Cart - Update Cart Button Location 3 Info
Show New Products on empty Shopping Cart Page 0 Info
Show Featured Products on empty Shopping Cart Page 2 Info
Show Special Products on empty Shopping Cart Page 3 Info
Show Upcoming Products on empty Shopping Cart Page 4 Info
Show Notice of Combining Shopping Cart on Login 1 Info

The only recent changes I made are...

Stock by Attributes mod

and

http://www.zen-cart.com/showthread.p...23#post1178723

The store in question is at www.d0000med.com (replace zero's with o's). If you add 50 of anything to the cart you can see that it is not functioning properly (I don't have 50 of anything).

Thank you for any help!