[ubuntu] wirless is disabled on my system

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http://ubuntuforums.org – when i ran the commmands sudo lshw -C network this is the output *-network DISABLED description: Wireless interface product: PRO/Wireless 3945ABG [Golan] Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:05:00.0 logical name: wlan0 version: 02 serial: 00:18:de:7f:42:50 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwl3945 driverversion=2.6.35-32-generic firmware=N/A latency=0 l (Hardware)