Product: MS S&T 2013. New problem occcuring. I plan a route and save it to flash drive > remove the flash drive > susequently reinstall flash drive and OPEN the file > make changes > try to re-SAVE the file >
get message "The volume for a file has been externally altered so that the opened file is no longer valid". I try to close the file and get, "...(file) already exists. Do you want to replace it?". Answer YES >
get message "The volume for a file has been externally altered so that the opened file is no longer valid". File disappears. What is happening and how do I avoid it?