Xfx Video Drivers Why Does My Comp Freeze When I Try To Watch Videos? This Only Applies When Videocard Drivers Are Installed!!!!

Why does my comp freeze when i try to watch videos? This only applies when videocard drivers are installed!!!! - xfx video drivers

Well, when I try to open a video file, it freezes my role model.
Then uninstall the drivers for my video card, then I can see my movies, but the quality is not so great.
When I install the drivers for the video card (nVidia XFX my movies) to freeze again and makes me comp.

uhhhhhhhhh Why?