Before reformating your HDD you should have looked in the Device Manager or System Information to see the make & model of your Video & Sound cards as well as all other devices so you can reinstall their drivers.
Do you know if they are onboard graphics and sound?
If so then you'll have to reinstall these drivers from the motherboard CD.
The correct approach at this stage is to find out the make & model of your motherboard. Then go to their website and look for the XP drivers for chipset and all onboard devices as well as IDE Controllers.
Install them before you look for other drivers.
If you have an AGP Video card & a PCI Sound card then you'll have to open your PC and get the make and model of these cards and then go to their manufacturers website to download the latest XP drivers.
as it says in the subject title i cant install my sound card and i dont know what make or model it is and i dont have a CD 4 it. I have only had the problem since i compleatly formated my h/d and re-installed XP home, I've looked around the XP disk and i cant find any folder 2 do with drivers. In device manager under other devices it says: ' multimedia audio controller' with a yellow ! ,as well as ' Video controller (VGA compatible)' also having the yelow !. Please if u can in anyway help me i would b v.happy 2 hear from u