When trying to save a form previously created in SharePoint 2007, I get the following error Infopath cannot save form the specified location is not valid, not available, or you do not have the correct permissions. This problem started when we went to Server 2008. If the user tries to submit the form to SharePoint they get a Request Entity Too large error. The form saves fine if the file attachments are less than 50kb. But any attachment over that, gives errors.