News from dookie

I need to make my laptop`s speakers go to 11. Since replacing the motherboard most everything seems a little quiter than it used to be, and some films are almost too quiet to hear distinctly. Some songs or films are nicely loud, so I know my speakers can do it. Is there some sort of universal amp type of program, or other way to increase my volume control, maybe something in the registry, to increase the volume even though I am already at max on the Windows Media Player and Windows volume control? (Acer Aspire 1800, WinXP Media Center Edition 2004) Thanks in advance for any assistance you can offer.