I recently burned the Ubuntu 12.04 iso onto a blank DVD and used that to install Ubuntu onto my Lenovo g500. I can see wireless networks after the drivers for my BCM4313 were installed, but I cannot connect to any of them. Also, my ethernet connection has not been recognized. I was able to connect to the internet when I boot to windows 8. I have been trying to fix it for hours, transferring what I assume are drivers from other threads to no avail. I would really appreciate some personalized help.