BlendCrv cause Crash V6 every time

The command BlendCrv crash Rhino Every time .
Attached the message error.
Ciao Vittorio

Strange. It’s working fine here for me.
I see the dialog is blank. Does it get drawn before it crashes?
If not, please take a screenshot of the settings on your OpenGL Otions page and send the image back.

Thanks

Hi John
I downloaded a new version and now it works.
Ciao Vittorio