EuCon Available but no Start Button

Hi guys!
I’ve just installed 32bit Nuendo 4.3.0 and EuCon 2.5.7 windows 64bit. Everything is working… licenses activated on my usb eLicenser, but after I add eucon artist mix or control to my devices, shows up the licenses but can’t click on them to show up the start button on my rright!

I’m using windows 7 64bit

Does anyone have any idea why?

Printscreen available!

Thanks in advanced!
Leopoldo Lopes