[vikram]

I've just purchased a E525 notebook and have downgraded from windows 7 starter to XP SP3. I didn't get a support cd so i dowloaded all the drivers from the manufacturers website. Chipset, VGA, Lan and Webcam have been intalled but for some reason the realtek audio driver doesn't work or pickup my hardware. the installation completes without a glitch but after restart there is still no sound or audio devices loaded in device manager. the exe. in the root directory doesn't respond (non of them). I'm stummped as the sound worked perfectly under windows 7 starter (Although for a day).

Any suggestions, I've tried afew online tips but they haven't helped!!!