after doing a test purchase and payment was sucessful using the paypal IPN checkout. payment went through .. received email of payment.

but here are the probs.. after payment made from paypal it redirects them to a blank white page

and there is nothing recorded for the sale of the product in the zen cart.

yes i have checked all payment module setups for the paypal IPN and double checked them that they are correct.

any help id much appreciate.