Video problems In Hoster 4.5

[Joe Nieves]

Can't Play mpeg Video in Hoster but play good in wmp.

I have Ver. 4.5 Xp os 4 gigs Mem 2.6 Duo Pros. 250 gig 7200 Rpm Drv.

It plays Video in Instabutton but no sound, and still errors out and needs to shut down.

It plays sound on Video button but no video, and still errors out and needs to shut down.

I keep getting this message

AppName: hoster.exe AppVer: 4.0.5.0 ModName: quartz.dll
ModVer: 6.5.2600.5596 Offset: 0002efc5

What does this mean and how can I fix it?

Thank you

Joe....