I have created AVI videos in Windows 7. These play as sound only when viewed
on Windows XP.

The files have been created by a program called Internet Video Recorder, by
Fogware. This captures website video and creates an AVI. I can view these
and listen to them on a Windows 7 machine (I have tried it on two). But the
picture will not play on both of my windows XP machines.

Any ideas?

Thanks,

John