[ubuntu] unable to activate broadcom

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http://ubuntuforums.org – hello, i followed this thread http://ubuntuforums.org/showthread.php?t=1288865 and successfully installed 'dkms' and 'bcmwl-kernel-source' via usb, in hope that Broadcom will be detected. it did work! but the problem is after many efforts to activate through Hardware Drivers, on my right it is still 'this driver is not activated'. 02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02) 04:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01) have i overlooked something simple? (or perhaps not so!) or is there something else can be done about it? really really miss networking.. updating packages and.. stuff... thank you very much in advance! (Hardware)