Ok putting a debug trap in - it seems that if you call the file on its own (ie not via a forum submit) it picks up the do=ipn
BUT - if you submit a form to the address shop.php?do=ipn then it doesn't pick up the $do variable (as it trips on the if (!$do) bit and sets it to view categories - however I've got it mailing the $REQUEST variables to me and they are all there).
No other changes have been made apart from the upgrade - could it be the new CRSF protection thing in VB?
p.s. I just remembered - it did the same thing on the Manage Orders page. It wasn't accepting the shop.php?do=ordersearch on the form submit, I had to put in the hidden field do = ordersearch.
I guess they're related!
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