Question about Acer Aspire 4720 Notebook
Right, let's start from scratch. Open your Device Manager, locate the audio card, and uninstall the driver. Leave Device Manager open.
You should be running Vista, but you also need to know if you are running Service Pack 1, as Vista and Vista SP1 need different drivers, so does the the 64bit.
The drivers can be found here: http://support.acer-euro.com/drivers/notebook/as_4720.html
Once you've downloaded the driver, unzip it and run the setup. If there is no setup.exe, then go back to Device Manager, click "Scan for hardware changes" and it should automatically find the driver.
Posted on Dec 05, 2008
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