Can't capture or import video using Windows Movie Maker

When I try to capture video from my camcorder using Windows Movie Maker, it
does not detect it despite the fact that it shows up as a removable hard
drive (E while connected. All other movie editing software detects the
device without any problems. Therefore, I can't capture video clips from my
camcorder using Windows Movie Maker which I find very annoying. Furthermore,
when I try to import previously captured video clips and movies on my
computer using Windows Movie Maker, it displays an error stating that "An
interface has too many methods to fire events from".

Incidently, the reason why I'm using Windows Movie Maker in preference to
the editing motion picture that came with my camcorder is because the
built-in software doesn't allow me to apply my own music or audio files on
the video clips. Please note, Windows Movie version 5.1 is running on my
Windows XP computer which has service pack 3 installed. The Windows Movie
Maker seems to be very user friendly but somehow it doesn't appear to be very
compatible. I must say I am very disappointed with this program. I would
really appreciate if anybody could offer any suggestions on why Windows Movie
Maker is not able to capture or import video clips.

Thanks

Martin