Reply to help : VCI-300 pitch big issue

The pitch on my VCI-300's left deck has a problem :

The pitch is set to zero (and the green light is on) when the fader is actually set on +3 or something. Moreover, this changes randomly, sometimes i cannot even reach zero, because it's out of the pitch fader range.
The pitch shift buttons are not on.

And while i'm playing a track, the BPM is not stable, it changes very quickly, in big proportions.

So It makes it very difficult to make a mix !
I don't know if it comes from the VCI-300 or from the ITCH software, but i really need help to fix this !


thanks in advance