Hello everyone. Well, as said on title, I got no sound on computer. I have a Compaq Presario SR1834NX. Last night for some reason computer restarted by itself and when Windows started, bang, no more sound. It will make the starting sound of Win XP but a few seconds later it will disappear. I've tried installing the Realtek AC'97 driver but nothing happened, tried to restore the system and didn't let me restore it. I have some important information here on this computer and I would like not to format it. I read that there was a solution in the setup menu something about load optimized but couldn't find it. Without further information, I would appreciate the help. Thank you very much. Regards.