No sound. IDT high definition audio codec problem.

Hello.  
my system is DIMENSION 9200/XPS 410
i've just installed windows xp sp3 and noticed that there's no sound. i went to the device manager and saw this:

uninstalled the driver, rebooted the pc. on startup a "found new hardware wizard" popped up and i used recommendet automatic settings for it to find the required driver. it did, the installation went on, saw a dos screen with "enabling audio device.." written and then it crashed with an error:




then i tried doing the same a few times. went to dell website, downloaded chipset driver for my system, installed it, did a reboot, installed the audio drivers shown for my system in the dell website. PC reboot - nothing. Still no sound, the same problem with IDT high definition audio codec remains. 

Any suggestions?