Douglas, thanks for helping in figuring this out.
The AR service pack would not impact AP in any way. Did you install a service pack to this module at the same time?
No, I did not install a Payables service pack at the same time. From my records, the last AP service pack was applied August 26, 2008.
Did you check to make sure that the users have full rights to the xxGLOB.xxx files? If they did not get updated then likley they are read only.
Yes, I checked, double checked and triple checked the rights on the GLOB files, other files within the folder and the folders itself. All the rights were the same after I installed the service pack as previous. They were not read only. After un-installation, the rights were still the same. In fact, I did not touch the data files when I uninstalled the service pack, just the program files.
--Andrew