TV tuner noisy audio

Hi, I have got a PixelView PlayTV Pro TV (mono) tuner card and have installed the driver modules through YaST (the exact card model was selected manually). When I try to watch TV in motv and kwintv after scanning the channels, the picture is quite clear but the audio is very noisy (I can hardly hear the original audio of the programme). Does anyone come across this problem or have any suggestions what I can do? Regards, Reg _______________________________________________________________________ Freeserve AnyTime, only £13.99 per month with one month's FREE trial! For more information visit http://www.freeserve.com/time/ or call free on 0800 970 8890