I keep finding an unknown multi media device and can assume this is the sounddrivers I tried searching the e machine site and couldn't find the drivers for the comp or even the model of the sound card( it has onboard audio)I really need the sound back on this computer especially since it is not my PC.
The os is win Xp home sp2

You should be able to find your sound card drivers here:
http://www.emachines.com/support/product_support.html

I was finally able to find and download the drivers that I needed but the e machines support page is all screwy.
It makes me glad that it isn't my computer.(I build my own )

http://www.nvidia.com/object/nforce_nf4_430_410_winxp32_8.26.html will install all of the mutha board drivers for the eMachine T3120 model -- including the elusive network adapter.

http://www.nvidia.com/object/nforce_nf4_430_410_winxp32_8.26.html will install all of the mutha board drivers for the eMachine T3120 model -- including the elusive network adapter.