importing dvr-ms (vista home premium)

I have Vista Home Premium
I used to be able to import .dvr-ms files into movie maker 6 easily and edit
them
Now, when I import, it only takes about 10 seconds, then there is just an
imported file that is the length of what I have but there is no audio or
video. When I try to drag into the timeline, it will only go into the audio
track.
I've tried this with multiple files

Any ideas?