Bro ,I have a problem here my patch sounds are different when my pod is connected to pod hd500x ,after I save the patch and disconnect the pod and shut it down and next time when I open it I found the sound of the patch that I reated before is different than the existed tone !!! ,then I open the pod hd 500x edit again to get back to the sound patch ,plus the volume is changed while opening the hd500x edit !!!! any help plz ?