I've the same problem with a rt2500usb (148f:2570 Ralink Technology, Corp. 802.11g WiFi) on karmic 32bit and 2.6.32 does not fix this for me. The workaround using rfkill does work for me.
I've the same problem with a rt2500usb (148f:2570 Ralink Technology, Corp. 802.11g WiFi) on karmic 32bit and 2.6.32 does not fix this for me. The workaround using rfkill does work for me.