Just bought this, plugged it in, installed the software, and I have the weirdest problem: If I play notes too hard, or too fast, the pitch wavers. The default is 0.0 but it'll jump up while I'm playing. This happens in the Arturia software, and also in NI Reaktor.
I use the midi controller to turn the pitch slider off completely, and it still wavers. However, if I use the keys on the virtual keyboard in Analog Lab, it's fine.
Anyone run into this? Probably just going to return this Monday, but it'd be nice if there was a fix.