HELP?????sound

>Hi I need to know some info have wxp

>when I go to sound and audio and click
>on mic, I can not take the check out of,
>the select box and can not move, the slider,
>only on the mic and on the recording, the midi playback
>I can not click on the volume it is grayed
>is this the sound card when I go to divece
>manger it say everything is working fine
>I am thinking wmp 9 might of done this when
>a friend downloaded it, if it is my
>sound card,it is via tech vinyl ac 97 codec combo
>driver (wdm), driver viaudios.sys I have a driver
>disk version 2.72 can I use this and how do I do it
> I don't know how.

P.S. I saw that windows updated my via ac 97
so I rolled it back now I have a yellow mark
it rolled back to 2001 I have a disk, I said above
I think is newer can you tell me step by step
how to do this I need to fix this Please
because when I go to the soundcard.com, place I
don't know what card to pick??? It was working
find it was either the update or wmp 9 help

HELP?????sound