[ubuntu] I just bought a laptop toshiba satellite s875d and Wifi wont work...?

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http://ubuntuforums.org – Hey, On my boot of Win7 Ultimate all my drivers are all up to date, and accordingly including wifi. But my problem is that on my Ubuntu 12.04 my wifi wont work, not even the indicator, that would provide info about other wifi connections in the surrounding area, which also inclusively mine. Is there a way to install and update all drivers by connecting it directly to the internet, or? Thnxs for the help in advance! :) (Hardware)