I have a Sony VAIO VGC-RA830G. It came with 5 speakers (2-front; 2-back; 1-center) and a subwoofer. My computer came with Realtek Sound Manager. It has a back panel where the speakers can be connected, a mic, and other things. It has a font panel where a mic and headphones can be connected as well. Well, yesterday I had a friend over and we were doing some recording on the microphone. It wasn't working in the front panel mic jack for some reason, but it would work in the back. Well, I had updated the drivers before and had never tested out the front panel mic jack to see if it was working correctly, so it may have actually been like this for a while. I had used the headphone jack though. Nevertheless, I opened Sound Manager and thought I'd see if there was a configuration I could fix. I didn't see anything. So, I thought I'd go to Realteks website and download the latest driver. Well, I downloaded it and saved it to my computer. Then I uninstalled the old driver. Restarted the computer. Then I installed the newer one. Now I have another problem, my 2 rear speakers aren't recognized!!!! Also, sound manager still looks the same, but it has few options then I had intially. Click here and you'll see how it looked before. Now it only has 4 buttons and many of the features I had before are missing. Click here to see how it looks now. As you can see, it only has three outputs. Before, it showed all of the outputs I had for the back of my computer and the front panel. To make a long story short, I've done everything possible. I contacted Sony Support and they suggested I restore my computer (I have too much software and important files to make that my first resort). I went to the Intel website and downloaded the HD Audio drivers that matched my chipset (915P) and that didn't fix it either. For some reason, I'm thinking that when I install the HD Audio drivers, all of my channels aren't being recognized or something. What's the problem??? Thanks!