Unresponsive tempo sliders until one shifts them again!

If you mean the tempo seems to freeze on the same track you previously adjusted, can’t say I’ve ever had that happen. Maybe an odd setting in the software somewhere? Or your USB ports freezing up?

If you mean after loading a new track it seems to lock – that is a software setting – and one I turned off as it annoyed me when I switched over to digital. Basically whatever pitch the song is locks in until the slider is moved back to the zero position, and then it kicks in again. Like I said, turned it off and haven’t looked back. Everything reacts as I would expect now…

I think you’re talking about what happens when you switch tracks. Say you have deck A playing so you cue and beatmatch deck B using the pitch fader to match deck A. B’s pitch fader is now non-zero. You’ll then cue the new deck A track and play that one, followed by loading a new track to deck B. Deck B’s pitch fader is already out of place since you cued it up last time. It’s in this instance that you now have to bring B’s pitch fader back to zero before you can adjust the track’s tempo (This is at least what happens with my current Traktor Pro 2 settings–you have to bring the controller value to match the software value before anything happens. The new track loads in the software with the software’s pitch fader at zero regardless of where the controller’s is, so you have to bring the controller’s fader up/down to match the software’s before any tempo changes are made).