Mbox 3 Pro LEDs problem

Hello,



After installation of Mbox 3 Pro all LEDs doesn`t work (with Powered Mbox + PC and standalone mode).

They shine only for few hours and now they stopped.

Everything with sound is OK.

All buttons work fine.

I`ve installed lastest drivers for win8.1.

I can do everything in Pro Tools but why LEDs are dead?

Help please.



LW