Skystar 2 Device not Started


After update of progdvb to V 6.48, my Skystar 2 doesnt work anymore.
I get message "Skystar 2 device not started"

I unistall e re-install everything and still nothing.
I updated Skystar 2 drivers, and still nothing...
I tried to re-install older version of progdvb, 6.46, and ~I allways get new GUI from 6.48.

Can anyone help me please?

many thanks,