RIO 2.1 is older than LV2009 and is incompatible.
For LV2009 I recommend installing RIO 3.3.1. 3.4 adds support for LV2009 SP1.
Thank you very much tomorrow I will try with new drivers and I tell you.
One more thing, do you know the link to download 3.3.1 drivers or 3.4 link is also available for LV2009 without SP1?