Hi, I am new to the forums here and I have hard problem I seem to not be able to solve. I recently swapped out a old HDD for a Dell Dimension 6400 with a newer one. I couldn't get Windows XP to install because it said it couldn't find the HDD. I was able to install Windows 7 however. It came with a bunch of drivers already with Windows 7. The audio does not work what so ever. I checked the computer and the driver Realtek 97 is working. However it says "No available jack information" I tried replugging the the sound into different jacks and it doesn't work. Can anyone help?