I've just installed 11.10 on an old Lenvo Laptop. All the way through the install process the wireless light was lit. As soon as I reboot the light goes out. In network the section to aircraft mode is set to on so I turn this off. I turn on wireless and the indicator light comes on for a second, and then it turns its self off again.
Name: Lenovo 3000 V200 Processor: Intel Core 2 Duo T7300 2GHz Screen: 12.1” WXGA RAM: 2GB HDD: 120GB Optical Drive: DVD+-RW,2Layer Graphics: Intel Graphics Media Accelerator 965 Network: 10/100 Ethernet, Intel 4965 802.11agn Wireless, Bluetooth Other: 3 x USB2.0, 1 x Firewire