Drivers for windows Vista are here:
http://support.acer-euro.com/drivers/notebook/as_4720.html
Under Drivers and Utilities, Select and download these drives;
1. Wireless LAN Atheros
2. Wireless LAN Broadcom
3. Wireless LAN Intel
While installing, please start with "Intel" as you follow instruction there after. Restart your Laptop and install Broadcom, Atheros respectively.
Please ensure that VISTA SP1 is installed on your system prior to installing these drivers!
Driver incompatibilities on a system without VISTA SP1 might affect usability.
Rgds
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