I am using a front end and backend access database with multiple users. The back end is located on the network server and the front ends are created on each user terminal. The system locked up about 2 weeks ago while 2 users were trying to update the same file. I fixed that issue but ever since there is a Access.lockfile.9 on the ldb backend file. Everything is still working ok, however, I fear that it will become a problem sooner or later. I have tried to create a new database and still get the lockfile message. What can I do? :-{}