Environment: Infopath 2010, SharePoint 2007
(modified 02 Aug to reflect further knowledge)
I have created an Infopath form (not browser-based) that works fine on a document's original creation and submission. If it is reopened, however, it cannot be re-submitted. The data connection is set to allow overwrite if form exists, and the form library has no versioning and no checkout required. The error is this:
Some rules were not applied.
InfoPath cannot submit the form.
An error occurred while the form was being submitted.
The form cannot be submitted to the following location: http://iso/Corrective_Action_Requests/LD00158b.xml
The specified location cannot be accessed. Check that the location you entered is correct and that you have appropriate permissions.
The only way to submit the form again is to change the filename.
I'm not using a data connection library (that had other problems).
Any ideas?