ok I own a Compaq,but put a new drive now i have no sound?

You will probably have to reload your sound drivers. If you have the original disk for the computer (Used to be Red) depending on how old your computer is -- it will load and follow the instructions for sound/audio. If you don't have the disk, you might try HP/support/drivers and see if it's available there. HP bought Compaq so they might have them. Hope this helps

Bruce
June 2008