You have just installed a new sound card in your system, and Windows says the card installed with no errors. When you plug up the speakers and try to play a music CD, you hear no sound. What is the first thing you should do? The second thing? a. Check Device Managet to see if the sound card is recognized and has no errors. b. Reinstall Windows 7. c. Use Device Manager to uninstall the sound card. d. Identify your sound card by opening the case and looking on the card for the manufacturer and model. e. Check the volume controls on the speaker amplifier and in Windows. f. Use Device Manager to update the sound card drivers.