[ubuntu] Wireless not working - lenovo y550

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http://ubuntuforums.org – Hi, I've instlled ubutnu 10.04 LTS on my lenovo y550 laptop. My wireless network is not working, I can connect by wire, and my wireless network is working on windows (similar like here http://ubuntu-virginia.ubuntuforums.....php?p=9613210 ). When i right-click on metwork connections icon in the upper right panel "Enable wireless" option is disabled and I can't enable it. I can't enable it with fn+F5 buttons either. lshw -C network: Code: *-network DISABLED            description: Wireless interface       product: PRO/Wireless 51 (HowTos)