I am having problems with the 'Gravity Forms Salesforce API Add-On' I have the SFDC credential correct, but when I test the form I get a spinning wheel that never updates, so it looks like the form is not submitting. When deactivate the SFDC plugins it works great. When I have only the 'Gravity Forms Salesforce Web to Lead Add-On' activated it works fine too, but when I turn on the API add-on it stops working again.
We have the Enterprise Edition of Salesforce. I'm not getting any errors in the firebug console either, the form just keeps spinning.
Any help would be greatly appreciated.