I have a form, and it works with three other tables.

1) I start with
Use table1 in 0
Use table2 in 1
Use table3 in 2

2) in the form, I add the three tables into the data environment.

3) When I start running the form, I got the following error messages

" Error loading file - record number 8, Form1 . Loading form or the data environment. Error Loading the data environment. Table in use"

What is going on?

Please help. Thank you.