DataGrid

Do anyone of you use a DataGrid in your applications? Does it work?
I tried various applications on various systems and it never works.
I always get the "IndexOutOfRangeException" when I try to add a new row.

Only in the ReportBuilder compiled application founded in the vmware image downloaded from this site I've seen it works.
But if I compile the source, it doesn't work.

Can anyone help me, please?