Solve : hardware problems in packard bell f1235?

1.	Solve : hardware problems in packard bell f1235?
Answer» I am USING a packard bell f125 model and its operating system last time is windows vista.Due to lag, I changed another hard DISK, format it and change windowsxp.After reinstalling the drivers that is required for the laptop,I found that when i PRESS the volume control, a mess tell me that a mixer is not installed and therefore tell me to INSTALL one. However when i try to install the whole sound driver, they tell me that some of the driver cannot be installed.Please help me asap.other than the error when you TOUCH the volume do get sound? If the drivers were from the Driver CD that shipped with the laptop then check the manuf. website for updated drivers or a patch.

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