I lost my HP restore disk, before my laptop got infested with viruses, all I could do is format and reinstall with a dell oem disk I had. The problem is it didnt get the sound, wireless nic, or correct video driver installed. I did select a SVGA for the video card so at least I have 256 colors, but still no sound or wireless. I tried looking for *.inf files on the driver and CD but none worked. I tried the internet but everywhere I went seemed like a scam. How can I get a working sound driver and wireless driver for my hp pavilion ze 4900? Please help!