why i see the image flipped vertically?

When i play a film, i see it flipped vertically. Why?

Thanks.

[Deadmeat]

If the clip is xvid. Right click when playing, go down to properties, select xvid mpeg 4 video decoder. In the xvid properties box theres an option to flip the video.

[Ryoma Nagare]

yeah thats one option the other is change the video overlay from type 1 to type 2

that helps when you have that problem