Run4bear, I need the Operating System version you are using. Windows what, and is it 32-bit, or 64-bit?Going with product problem heading -Toshiba Satellite U205-S5002 as the product, and using Windows 7, 32-bit as an example,
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=SB&os=&category=&moid=1363705&rpn=PLUA0U&modelFilter=U205-S5002&selCategory=2756709&selFamily=1073768663Click on the Downloads tab.(Downloads / Support Bulletins / Detailed Specs / etc )To the right of the bold black subheading -> Refine Search By:,click on the blue Down Arrow to the right of - All Operating SystemsClick on the O/S you are using. I chose Windows 7 (32-bit).Now click on the blue Down Arrow to the right of - All CategoriesChoose - SoundThere are two files listed;A) Sound ApplicationB) Driver SoundYou want the sound driver. (Driver Sound)Click on the blue title name -ADI Audio Driver for Windows 7 (32/64) (v6.10.01.6040; 08-28-2009; 5.42M)Click on Download Now in the red rectangle.A small window will come up -Opening driver_audio_adi_TC00192300B.exeClick on Save File.A small download window will come up.Allow the file to fully download, then DOUBLE-click right on the file name.At the bottom of the next 3 small windows, click on Next, Next, and Finish.If you are not asked to restart your computer, do so.Close all windows, go back to your desktop screen.WinXP:Click on Start > Turn Off Computer > RestartWindows Vista and Windows 7:Click on the Windows logo button, then the small down arrow to the right of Turn Off, and then on Restart.Driver: Small piece of software that allows the Operating System to communicate with a device.The audio chipset is the device.O/S wasn't stated.[ Chip and Chipset are slang terms for I.C.Integrated Circuit,
http://en.wikipedia.org/wiki/Integrated_circuit ]Windoze lost the driver to your audio chipset.That is, lost the Address to the driver file, on the Harddrive.Windblows; ya gotta love it!For additional questions please post in a Comment.Regards,joecoolvette