Same problem...diffrent cause maybe...recently installed a 2g memmory stick instead of the two 512....everything worked just fine....looked up specs for other hardware it said i could have 3g of ram..got another 2g ....stuck it in...(no audio device installed)....BUt playing games was faster so therefor i think it kind of excepted it....so took one of the rams out sound sorted but i want my ram in....even if its recognising just 3g better than 2g eh,,,,obviously the drivers there Any suggestions ..ive same os on other hard drive willing to experiment,,