Thanks for the info.  Yes, as long as the client file did not corrupt in the first place, we were able to open it and able to unclick the "Update Automatically" box.  However as a precaution, we had to have the matching client ATB program file open so that it would prevent the Proseries file from automatically importing the ATB numbers and potentially crashing the file.  We managed to uncheck the remainder of our uncorrupted files with this method.