Xseries :: X2-00 Convert Videos To Mobile, Get Glitchyor **bleep** Sounds?

i hav nokia x2-00(s40v6).When i convert videos to mymobile, i get glitchyor **bleep** sounds. There is noprob for the videobut it happens only to the audio.It alwayshappens when i set the audiosample rate as44100KHz. If i increase it to48000KHz, the soundis ok for about 10-20 mins butthe video andaudio sync wont be proper. Isthis a problem forall the s40v6 sets ?PS : I tried with many settingseven the lowest**bleep** ones but still the problemis based on thesampling rate.So guys, have anyoneexperienced this before