Sound does not work, restore points are completly gone

hii

i have windows XP today i turned on my computer it forced me to do system restore. i done all that its complete but i have no sound now!! before my PC was restored otday i had similar problem where ididnt have soundi went a brought a new sound card and it worked now when i go to controll pannel> sound,speech and audio devices>Sound and Audio Devices>sound and audio devices properties and under the volume tab the whole section is grey. also on bottom right side of my desktop the sound logo or ican is gone aswell


can you please help would be appreicate massivly thank you

dear friend.
the red X appears on the sonud icon in vista when the driver you have installed is incompatible withh the hardware.

try these steps
*check your speakers
if it fails
then


*go to device manager
*from the sound and video uninstall sound devices
*restart your pc
*the drivers should be detected by now

*if the above steps fail
*after uninstalling the sound devices
*click on search for hardware changes
*then proceeed with automatic install(make sure you are connected to internet)
note: the automatic driver installaion in vista is a bit slow so be patient.