no sound in capture from panasonic nv-ds35en

Hi,
I have a problem capture video and audio from my minidv, while capturing, the audio plays in the pc speakers.
but when playing the captured avi file, there’s no sound, only video.
I tryed with several programs: MS XP application, roxio dvd builder, ulead video capture. but with every one its the same.
help me some one...
Thanks
Eitan

i have a problem capture video and sound from my cam corder panasonic vx87,while capturing there is no sound.