We have a database that is shared by 5 users. We found a record on a form that had "#Error" in a field rather than the data that had previously been keyed in. When the field was click on with the mouse, we got a message that said "The Microsoft Jet Database engine stopped the process because you and another user are attempting to change the same data at the same time." We all exited the database (and Access completely) and ONLY ONE of us re-opened the database and went to the record on the form, with the same result. After this message appeared, trying to open any other objects in the database resulted in an "Out of Memory" error message. Any thoughts on why this may have occurred?