I see where users saxonycreative and rallyadmin had this issue also but see no confirmed resolution for them.
I'm using Donate Extra on this site: http://oralcancersucks.jamahost.com
There are three donations recorded in PayPal IPN history but none of them were recorded in the admin nor on the Donor Wall. I did set the Instant Payment Notification URL in PayPal's settings to the URL in the Donate Extra settings but it made no difference. The paypal.php file permission is 644.
This blog is part of a multisite. Is this plugin multisite compatible, or is there something else? I just upgraded to 3.5 but this problem originally occurred in WP 3.4.2.
Thanks in advance,