What Type of messages are you getting when it crashes? You may consider number of users, if you have a multi user set up. Further, you may pay attention to the stability of the network your file is on, again, if it resides on a server. We have found, if a desk top computer arbitrarily disconnects from the network while your file is open, the database is currupted - but, very recoverable. If you aren't already familiar with the process, currputed access database tables etc, can be opened through excel and recovered. That way you don't loose any data.