Continuous Sustain Pedal - Noise!

Hi All,

I use Pianoteq for practice in conjunction with a Casio Grand Hybrid. I am working on several pieces at the moment which require careful manipulation of the sustain pedal. I am finding that the damper noise (resonance noise as the dampers lift away from the strings) continues as a 'rumbling noise' in the background when half pedalling.

I do like having a bit of damper noise on when I'm playing - but I've had to turn it off due to this at the moment!

Any workarounds?