Sorry I went off and checked a few things and came back to find I couldn't edit the previous message.
So, no change in hosting, no edit of .htaccess, no change in IPN notification preferences at PayPal or Auto return setting. No modules installed/removed and no changes to Zen Cart version. This literally worked one day 21st June and stopped 22nd June.
Payments are being processed by PayPal and notification not received by Zen Cart - no order is created in the database. So, this sounds like the IPN is either not received or not processed. So it's a problem with the host???
Wendy




