i checked again.. the pblm remains.. guys i am not an expert in these kind of thinks.. so i cant say wat i exactly felt. i felt the sound like when we talk through a small pipe, not exactly like that... jst to convey you wat i felt.... please watch it carefully for some time.... other wise it may be problem at my end... but the funny part is that i felt these only on these two channels.... Any way sry for disturbing you all.. Thnk you..