I recently purchased a brand new pc and pretty soon after had some major software issues. i formatted and installed xp pro, ,y drivers for video and sound where missing, i have had this problem on previous systems. i have successfully replaced the video controllers and they work fine but when trying to install audio drivers i receive an error message ( -536870397) it is an SiS 7012 Audio Device PCI.. -- i am getting very annoyed please help -- !!!!!!