IE7 video problem

[Guest]

Internet Explorer 7 used to work fine, then something happened and now I have
an issue with playing videos. I can't make a connection as to what type of
videos won't play, but here's what happens. Youtube and Google videos work
fine. However, Yahoo's music videos do not. It seems like any video that
opens in a new window does not work, and it crashes IE all together.

This is the error signature I get:
AppName: iexplore.exe AppVer: 7.0.6000.16512 ModName: quartz.dll
ModVer: 6.5.2600.2749 Offset: 0003155d

Specs:
O/S: Windows Home Edition for XP - Version 5.1 (Build
2600.xpsp_sp2_grd.070227-2254 : Service Pack 2)
Internet Explorer 7 (Version 7.0.5730.11)

I don't think it's my video card because IE plays other videos, plus all of
my online games work. Windows is up to date; I've run virus checks and
nothing fixes it. If you need any other info, I'd be happy to give it.
Thanks!

 

[Guest]

Your computer may not be updated when you install one of the DirectX security
updates that is associated with security bulletin MS05-050 on a computer
running Windows Server 2003, Windows XP, or Windows 2000
http://support.microsoft.com/kb/909596