I know this has been brought up a few times before, but after trying some of the methods listed I am still having trouble. I went back and tried and older version, which did not work. I changed the output mode to Win32 waveOut Extension, which helped with most files. But I am still having trouble with avi files, especially ones where a great deal of audio is playing.
I tried enabling the graphic equalizer under Tools > Effects and Filers > Audio Effects, but that doesn't seem to work.
I am almost sure it isn't the videos themselves as when I play the audio itself in winamp there are no stutters at all.
I don't have the codecs some have been suggesting to delete so I know it is not that as well.