DataTable internal index is corrupted... anybody can help me?

Hello people, how are you

I'm in front of a strange error.

I have a data form, that show and manage the data by a BindingSource control.

I hava a dataGridView and individuals controls like textbox to edit them.

It's work fine at the begin, but after some adds, removes or updates, the .Net retrives me the follow exception:

"DataTable internal index is corrupted: '5'"

It's very borried.... it's an ilogical error....

Does anybody have some tip

Thank you.

Andre P. Bertoletti

(Brazil)