Ubuntu 11.04

As usual great distro. One small problem though if you install it on Dell Inspiron 9400, the Wi-Fi won't work.
So to fix the problem here's what you need to do.

1. Make sure you add the following line to /etc/modprobe.d/blacklist.conf

blacklist ndiswrapper

this is avoid wi-fi card conflicts if you have ndiswrapper enabled.

2. Next open up the System>Administration> Synaptic Package Manager
and type "bcm" in the search bar

3. Select the bcmwl-kernel-source 5.100.xx right click and Mark for removal

4.Now download the new(old) version of the kernel from here as .deb package

5. Open up a Terminal and navigate to the file you just downloaded

6. Execute the following command

/home/bob# gdebi bcmwl-kernel-source_5.60.48.36+bdcom-0ubuntu5_i386.deb

and follow the instructions

7. If you don't have gdebi installed you can install it from the Ubuntu Software Center

8. Reboot your box and enjoy wireless networking

That is all folks ...