all my movie files are in a folder named 'my movies'

when opening that folder i set the 'view' option
as 'thumbnails'.
with this setting all i see in the thumbnail is
the 'windows media' logo & underneath the 'mvi' file
name. there is no image of the movie, thus making it hard
to 'see' what the movie is without actually opening the
file.
previously i was able to 'see' an image. a setting
somewhere has changed.

any ideas?

cheers
stuart