[q]: how to display wmv inline?

hi,

using firefox 1.5 i noticed that wmv video is not displayed inline.
for example this page:

 http://utterlyboring.com/archives/2005/11/22/thats_one_kille.php


it shows for a second the wmv movie window inline. then the window is 
gone and only the sound is played.

the same thing happens on a fresh copy of firefox 1.5 running under 
windows xp.

please help me setting up firefox correctely.

regards 
kp

-- 
superegos talker