I'm having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible. I'm a user with no advance knowledge in Linux, so I would need clear explanations on make, compile, etc.

Edit: For the command: "lspci | grep Network", I get the following message:

06:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)

For the command: iwconfig, i get the following:

lo no wireless extensions. eth0 no wireless extensions.

When i follow the following steps (from the above link), there are a NO error message at all:

• open the 'Synaptic Package Manager' and search for bcm

• uninstall the bcm-kernel-source package

• make sure that the firmware-b43-installer and the b43-fwcutter packages are installed

• type into terminal:

  cat /etc/modprobe.d/* | egrep '8180|acx|at76|ath|b43|bcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|witch|wl'
  

• (you may want to copy this) and see if the term blacklist bcm43xx is there

• if it is, type cd /etc/modprobe.d/ and then sudo gedit blacklist.conf

• put a # in front of the line: blacklist bcm43xx

• then save the file (I was getting error messages in the terminal about not being able to save, but it actually did save properly).

• reboot 'End of procedure'

Before (not ubuntu 11.04), if i wanted to connect wireles, i just went to the icon at the upper side of the screen, click, showed ALL the wireless network available, and done.

Now, the only options i see are:

• Wired Network
• Auto Eth0
• Disconnect
• VPN
• Enable networking
• Connection information
• Edit connection.

lspci -vnn | grep Network showed:

Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] 

hope above info is enough for your help.