Yes, it's a Codec issue as Shenan said. VideoInspector will tell you the
name of the Codec that you require to play that particular file correctly.
KC Softwares:
http://www.kcsoftwares.com/index.php?vtb
"VideoInspector is a tools designed to provide you with as much information
as possible about your video files. With VideoInspector you'll know why your
video files has no sound or refuses to play correctly. VideoInspector will
help you installing the required CoDecs (coder/decoder software) for an
optimal performance. VideoInspector can also inspect your system to find
which codecs are available, and it can also process multiple video files and
export its result in HTML or plain text files."
--
Regards,
Ramesh Srinivasan, Microsoft MVP [Windows XP Shell/User]
Windows® XP Troubleshooting
http://www.winhelponline.com
I was removing some programs and since then I can only hear a sound but I
can't see the movie