Tnanks to Help on the Creek, especially John Miliunas, I again have sound. Now my problem is the off on switch on the case. When I shut the computer down it gets to that last screen where it says it is safe to turn the computer off. Then if I push the switch to turn it off it just reboots. No matter how lightly I press on the switch it just reboots the computer. My question is about the switch. Are they fairly uniform in shape and size. That is, could I go to a computer shop and buy a swiitch that is likely to fit the front of my case.?