Hi all, I am currently using a Windows Server 2003 as our shared drive. However, when two users open the same files, it doesn't shows the "read only" message. Because generally, when two users open the same file, the second user who open it should receive a "Read Only" pop-up message, to avoid they overwrite the other person edit. But now this doesn't work. It allows both users open the file at the same time and save at the same time. THis cause a lot of problem as many files in our shared drive may edit by different users. Anyone know how to solve this problem? Thanks a lot for the help in advance.