I have a question about the sound on my computer. I recently sent my pc to be fixed because it was turning off randomly as well as the screen sometimes just going black. The computer came back working fine and the guy who fixed it said that it was a problem with the sound in windows, and that there was some connections that were broken or something. This is what he told my father who collected it for me anyway. So now I am am getting issues with my sound, like odd echo effects and stutters that happen randomly. I wanted to know if you replace a sound card does would that not completely erase any sound issues you might be having, in other words do all problems resulting with sound stem form the sound card or the onboard audio. Or can they happen "inside of windows" whatever that means?