I reinstall window and now my video won't work

[catsy]

So, I reinstalled window, reinstall bs player, and tried to install codecs, but it doesn't help my videos. (ffdshow mpeg4, that sorta codecs) Then, I had to download dvix, and it would play some videos and not some, and bs player would play the ones divx played but with no image. I used to be able to see the ones both players can't play but now it said it has no video track, what is going on!? HELP. What does it all mean>

[Tizio]

Have you installed DirectX v9.0c?
Updated video drivers?

What does GSpot tells you when you open those files? Is it able to play them? Does it say you miss some codecs?

[catsy]

I shall ahve directx already coz the only game I play needs it

error = now it said it has no video track

when i tried to play mkv, bsplayer said cannot open file, divx so no video track