Hello. Got a Dell Inspiron 1150, had to reformat the HD.' Installed windows XP pro, and I have no sound. I go to control panel and I see no sound card at all... Strange, Reboot and in Bios there is a sound card ( Sigmatel 9750- C-Major Audio) Go back to Dell support, download the correct( and only one file there) audio driver. Try to install and get a message that there is no sound card found... Go back to manually install sound card and rely on the file I downloaded for the .inf file, and get a sound card installed, but with a yellow ex sign on it. Try to install drivers again, and get the same error... No card installed... Anyone can help?