i have recently purchased a panasonic 42 inch plasma model no TH42PX7B.even on a low volume i am getting a vibration from the speakers.it does not happen all the time although it is worse when you watch a speech channel such as sky sports news.when you turn the volume up loud it is there all the time but as i said before it even happens on a low volume.if i put my hand on the back panel it stops.the vibrating noise is really bugging me and ruining the enjoyment of the new tv.can anyone offer some much needed advice
