The selected data entry file is about to be updated. Just upgraded a customer to 4.5.0.2 - they're in AP doing a manual check. They do not get a paperless office register - instead they receive a ""the selected data entry file is about to be updated"".
Resolution - delete (rename) the MAS90\LOCKS folder for the company name. There was also a paperless lck that I renamed.
http://infosource.sagesoftwareonline.com/sw_attach/kdb.asp?isresolutionconceptid=493066