Order not registered in ZC - Paypal IPN

I configured the Paypal IPN module and did a test purchase paying via other paypal account.

Payment went trough fine, but the order is not registered in ZC.
I followed the instructions available from this site and think my settings are correct.

Can anyone advice why the order is not registered in ZC?

btw, d i need to set the PDT Token (Payment Data Transfer)??
i left this blank since i cant find anything about PDT on paypal.

Troubleshooting PayPal issues: http://www.zen-cart.com/wiki/index.php/PayPal

Also, note that their systems have been having problems in the last week or so, causing order notifications via IPN to fail.
Express Checkout is an alternative.

Thanks, thats the info i used when setting up the module.

But how come the order is not being registered in ZC, i mean the whole check out process is successful.
The payment goes through but no order is visible under Orders.

DrByte:

Also, note that their systems have been having problems in the last week or so, causing order notifications via IPN to fail.
Express Checkout is an alternative.

The most likely reason is what Doc listed inhios last post

hmm...i guess there are some problems with Paypal IPN cos Express Checkout works fine and the order is now being registered.

But i encountered a new problem with Express checkout.
Im using Reward Points and get an SQL error after clicking the Express button when not logged in:
http://www.zen-cart.com/forum/showthread.php?p=558615#post558615

I understand this problem comes from the Reward Points mod, so i wonder if there is a easy way to disable the express button when not logged in?

I hate ZenCart! same problem here!!

....perfect transaction but "not registered in ZC"..... I don't know what bought!....or who??!! where?!!!

PDT Token?? yes, I configured it....no no no!!!

....problems with languages....problems with famous "white page"....problems with PAYPAL.....

Ok I am computer engineer and am completely tired of this ########!!!!

The worst online e-commerce..... ZENCART!!!

"Zen Cart™ truly is the art of e-commerce"...OH! my God!!...liar liar!.........

No more Zen Cart....hello Virtuemarkt.....

1000's of folks manage to configure and use PayPal with Zen Cart. So sorry to hear you have a problem. Good luck with your alternate choice!