>Hello again everyone!
>
>Does anyone know what this error means? We don't get it until we enter a certain number of records, at which point the computer freezes and/or indexes get jumbled and/or a fatal error message pops up and/or a "record in use by another user" message comes up. Would any of you know what causes this error and possibly how it can be fixed? Thankyou very much.

This means exactly what it says... from the help file - 'You have attempted to write to a record that is locked by another user.'

Is someone else using the table you are writing to?

OTOH, if you are trying to append a large batch of records, you could get this problem if your network hiccups.

HTH