On a 'Define Accepted Payment Types' page when I want to remove all payment types associated to any category (Clients, Groups etc.) there is no possibility to remove them all at once. When I move all of the types from the right box to the left box (by select each type in the right box and click on 'Remove' button) and click 'Submit' button then a page with an error appears (see attached screenshot).
Actually the previously selected types are not removed because when you open again a 'Define Accepted Payment Types' page then all the previously removed types are still in the right box.
Payment types can be removed w/o errors at once.
Build DateTue Nov 09 13:56:56 PST 2010