The MicroStar International MS-7061-020 is also the MSI KM4M-V motherboard,
http://uk.msi.com/product/mb/KM4M-V.htmlSuggest you download the Audio drivers, AND install them.Hover your mouse cursor on Download.(Overview / Specification / Download / Support / etc)In the drop down list click on - DriverChose your Operating System (OS: box, and blue Down Arrow)I chose Windows XP 32-bit as an example. (XP 32)VIA SMART5.1CH Sound DriversTo the right of the subheading - Download, click on the blue -VIA VT1617 Sound MB.zipClick on the blue - Download 1A small window will come up on the right -Opening VIA_VT1617_Sound_MB.zipMake sure the small circle to the left of Save File, has a Green dot in it.If not, left-click in the empty circle to the left of Save File.Now go below in the window, and click on OK.A small download window will come up on the left.Allow the file to fully download, then DOUBLE-click right on the file name.In the next small window go to the top left, and click on -Extract all files.At the bottom of the next 3 small windows, click on Next, Next, and Finish.If you are not asked to restart your computer, close all windows, go back to your desktop screen.Restart your computer.(Win XP: Start > Turn Off Computer > Restart)For additional questions please post in a Comment.Regards,joecoolvette