No wireless networks with Easynote laptop and Ubuntu 11.04

I assume that all of these laptops use the broadcom wireless adapter but to check open a terminal and type:
sudo lshw -C network
The ethernet and wireless interface information will be shown.

If you indeed have a broadcom interface connect to the internet via an ethernet cable and open the Synaptic Packet Manager and install b43-fwcutter then firmware-b43-installer or open a terminal and type:
sudo apt-get install b43-fwcutter
sudo apt-get install firmware-b43-installer

Remove the the ethernet cable and restart Ubuntu and the wireless network should be available.

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