xD
A seperate graphics card and no graphics card are very different things. If you have no graphics card, you have no video output and your monitor would be blank, full stop. Chances are, your graphics card is probably integrated onto the motherboard. It's not seperate, but it's still a graphics controller which your monitor is plugging into, which will be listed as a graphics card by Windows, and is still commonly referred to as a graphics card.
Since it's jamming in an FMV, it could simply be a scratched CD, so I'd check that out first